Definition of infectious in English:

infectious

adjective ɪnˈfɛkʃəsɪnˈfɛkʃəs

1(of a disease or disease-causing organism) liable to be transmitted to people, organisms, etc. through the environment.
（疾病，致病生物体）传染的，有传染性的
outbreaks of infectious diseases
was polyneuritis infectious?
a highly infectious virus
Example sentencesExamples
- MPs poured out of the Commons potentially spreading any infectious agent.
- This cross sectional survey was not designed to provide direct evidence of transmission of infectious diseases in prison.
- Measles is highly infectious and could spread very quickly.
- Mumps is highly infectious and spreads rapidly in susceptible people living in close proximity.
- Must my rejected bag secretly be destroyed to prevent the spread of infectious agents?
- It was thought that close contact with an infected person was needed for the infectious agent to spread from one person to another.
- Our feeling, however, is that they most likely contain a single infectious capsid.
- Molecular biology has had a major impact on medical microbiology and infectious disease.
- Severe acute respiratory syndrome is highly infectious and potentially lethal.
- Glandular fever is an infectious illness that causes swelling of the lymph nodes.
- Bone lesions from infectious disease or parasitic infection are rare.
- There are also some major infectious diseases for which vaccinations have not been developed.
- Against this background, the emergence of new human infectious diseases or viruses is unsurprising.
- The classic means of protecting persons exposed to infectious diseases is vaccination.
- He was taken to the infectious diseases hospital three days later.
- What if I tell myself the rash will go away and it becomes infectious and spreads even further?
- However, conjunctivitis caused by the common cold is very infectious and can spread rapidly between people.
- The cull of a flock of 9,000 pheasants was under way yesterday after confirmation of a highly infectious bird disease.
- Clean bathroom surfaces also help prevent the spread of infectious germs.
- However, the bacteria are not as infectious as the common cold and cannot be spread by casual contact.
- Unravelling the genetic and environmental determinants of infectious disease will soon be feasible.
- Lyme disease is an infectious illness caused by the bacterium Borrelia burgdorferi.
Synonyms
contagious, communicable, transmittable, transmissible, transferable, conveyable, spreadable, spreading
informal catching
technical epidemic, pandemic, epizootic
dated infective
1. 1.1 Liable to spread infection.
  传播疾病的
  the dogs may still be infectious
  这些狗也许仍会传播疾病。
  Example sentencesExamples
  Dutch botanist Martinus Bijerinck called this infectious fluid contagium vivum fluidum.
  Those treated can support their families and are likely to be less infectious.
  A person with glandular fever is most infectious when they have a fever (high temperature).
  By the way, colds spread through touching infectious surfaces or inhaling viruses.
  Some of the cheapest meat is stripped by machines and high-pressure jets from the bone, which is likely to be highly infectious in a sick cow.
  She was misdiagnosed with gastro-enteritis, and transferred to Castle Hill because it was felt she was infectious.
  Synonyms
  contaminating, germ-laden, polluting, pestilential, virulent
  poisonous, toxic, noxious
2Likely to spread or influence others in a rapid manner.
有感染力的，具影响力的
a loud infectious laugh
her enthusiasm is infectious
她的热情具有感染力。
Example sentencesExamples
- Poverty is something that is contagious and infectious in our community.
- He had a wonderful sense of humour and an infectious, hearty laugh.
- The balance of chilly remove and infectious abandon that Morton conveys adds much to Morvern's allure.
- Valencians don't simply watch fireworks - they almost commune with them and the feeling is infectious.
- Nevertheless, she understands the essence of the formula, and applies it in a manner that is infectious.
- She had a warm personality combined with a loud infectious laugh.
- It does make you an energetic person, and one who has an infectious and personable manner.
- The problem is once you fall for the guy with the infectious laugh or the girl that takes your breath away, you have to get them to notice you.
- His quick wit and absolutely infectious laugh are almost as entertaining as the show itself.
- His infectious enthusiasm for technology is spread through his weblog.
- Seeing Chris thrashing around his drum kit made Steven smile and the infectious smile spread to Donnie.
- The author's enthusiasm and infectious desire to communicate his ideas comes across loud and clear.
- The dog had an infectious energy, a boisterous nature, that spread wherever he bounded.
- Darlene simply had the kind of infectious positive attitude that influenced everyone in her presence.
- Not only that, but it's the infectious happiness of the manner, with the very sterile, factual detailing of demise that is the content.
- He grinned slowly, an infectious smile that soon spread, spanning ear to ear.
- Your enthusiasm is infectious; it spreads as rapidly through conversations as it does through bloodlines.
- Neville Garden communicated his own infectious enthusiasm, week after week for many years, through his work as a critic.
- Long had he been plagued by an infectious fear of spreading weakness in times that demanded strength.
- A most pleasant man, his naturally friendly manner and infectious good humour have made him a popular member of the Ship's Company.
Synonyms
irresistible, compelling
contagious, catching, spreading, communicable

Usage

On the differences in meaning between infectious and contagious, see contagious

Derivatives

infectiously

adverb ɪnˈfɛkʃəsliɪnˈfɛkʃəsli

At the same time, a European-derived painting style called Neo-Expressionism proved to be infectiously popular amongst the Art Institute students.
Example sentencesExamples
- Now 55, Clifford is still infectiously enthusiastic.
- Though markedly different, both have strong elements of dance, which had the conductor almost pirouetting on the rostrum, thus coaxing infectiously springing rhythms from his colleagues.
- Churchill's infectiously ebullient personality had served his government and his country well in the First World War as well as the Second.
- If Robertson is infectiously bombastic about theatre, there's a surprising nonchalance about his career on screen.

infectiousness

noun ɪnˈfɛkʃəsnəsɪnˈfɛkʃəsnəs

If one takes these vibrios and cultivates them on nutritional media in the lab, or uses them to infect animal models, their infectiousness declines rapidly.
Example sentencesExamples
- Given that assumption, a mathematical model was developed using data on how infectiousness develops in sheep.
- He said infectiousness would reduce when rashes appear three to four days after symptoms' onset.
- An overwhelming majority of persons living with HIV infection do not get detected and remain unknowing of their potential illness and infectiousness to others.
- Perhaps this is why the film is best seen in a crowded theatre, where the infectiousness of cathartic emotion can have full play.

Definition of infectious in US English:

infectious

adjectiveinˈfekSHəsɪnˈfɛkʃəs

1(of a disease or disease-causing organism) likely to be transmitted to people, organisms, etc., through the environment.
（疾病，致病生物体）传染的，有传染性的
Example sentencesExamples
- Clean bathroom surfaces also help prevent the spread of infectious germs.
- The classic means of protecting persons exposed to infectious diseases is vaccination.
- What if I tell myself the rash will go away and it becomes infectious and spreads even further?
- Lyme disease is an infectious illness caused by the bacterium Borrelia burgdorferi.
- There are also some major infectious diseases for which vaccinations have not been developed.
- Bone lesions from infectious disease or parasitic infection are rare.
- Molecular biology has had a major impact on medical microbiology and infectious disease.
- Severe acute respiratory syndrome is highly infectious and potentially lethal.
- It was thought that close contact with an infected person was needed for the infectious agent to spread from one person to another.
- Measles is highly infectious and could spread very quickly.
- Unravelling the genetic and environmental determinants of infectious disease will soon be feasible.
- This cross sectional survey was not designed to provide direct evidence of transmission of infectious diseases in prison.
- However, the bacteria are not as infectious as the common cold and cannot be spread by casual contact.
- MPs poured out of the Commons potentially spreading any infectious agent.
- The cull of a flock of 9,000 pheasants was under way yesterday after confirmation of a highly infectious bird disease.
- Against this background, the emergence of new human infectious diseases or viruses is unsurprising.
- Mumps is highly infectious and spreads rapidly in susceptible people living in close proximity.
- Must my rejected bag secretly be destroyed to prevent the spread of infectious agents?
- Our feeling, however, is that they most likely contain a single infectious capsid.
- Glandular fever is an infectious illness that causes swelling of the lymph nodes.
- However, conjunctivitis caused by the common cold is very infectious and can spread rapidly between people.
- He was taken to the infectious diseases hospital three days later.
Synonyms
contagious, communicable, transmittable, transmissible, transferable, conveyable, spreadable, spreading
1. 1.1 Likely to spread infection.
  传播疾病的
  the dogs may still be infectious
  这些狗也许仍会传播疾病。
  Example sentencesExamples
  She was misdiagnosed with gastro-enteritis, and transferred to Castle Hill because it was felt she was infectious.
  A person with glandular fever is most infectious when they have a fever (high temperature).
  By the way, colds spread through touching infectious surfaces or inhaling viruses.
  Dutch botanist Martinus Bijerinck called this infectious fluid contagium vivum fluidum.
  Those treated can support their families and are likely to be less infectious.
  Some of the cheapest meat is stripped by machines and high-pressure jets from the bone, which is likely to be highly infectious in a sick cow.
  Synonyms
  contaminating, germ-laden, polluting, pestilential, virulent
2. 1.2 Likely to spread or influence others in a rapid manner.
  有感染力的，具影响力的
  her enthusiasm is infectious
  她的热情具有感染力。
  Example sentencesExamples
  His quick wit and absolutely infectious laugh are almost as entertaining as the show itself.
  The problem is once you fall for the guy with the infectious laugh or the girl that takes your breath away, you have to get them to notice you.
  Poverty is something that is contagious and infectious in our community.
  A most pleasant man, his naturally friendly manner and infectious good humour have made him a popular member of the Ship's Company.
  Nevertheless, she understands the essence of the formula, and applies it in a manner that is infectious.
  He grinned slowly, an infectious smile that soon spread, spanning ear to ear.
  Darlene simply had the kind of infectious positive attitude that influenced everyone in her presence.
  It does make you an energetic person, and one who has an infectious and personable manner.
  Your enthusiasm is infectious; it spreads as rapidly through conversations as it does through bloodlines.
  The balance of chilly remove and infectious abandon that Morton conveys adds much to Morvern's allure.
  His infectious enthusiasm for technology is spread through his weblog.
  The author's enthusiasm and infectious desire to communicate his ideas comes across loud and clear.
  She had a warm personality combined with a loud infectious laugh.
  He had a wonderful sense of humour and an infectious, hearty laugh.
  Neville Garden communicated his own infectious enthusiasm, week after week for many years, through his work as a critic.
  Long had he been plagued by an infectious fear of spreading weakness in times that demanded strength.
  Not only that, but it's the infectious happiness of the manner, with the very sterile, factual detailing of demise that is the content.
  The dog had an infectious energy, a boisterous nature, that spread wherever he bounded.
  Seeing Chris thrashing around his drum kit made Steven smile and the infectious smile spread to Donnie.
  Valencians don't simply watch fireworks - they almost commune with them and the feeling is infectious.
  Synonyms
  irresistible, compelling

Usage

On the differences in meaning between infectious and contagious, see contagious

单词	infectious
释义	Definition of infectious in English: infectious adjective ɪnˈfɛkʃəsɪnˈfɛkʃəs 1(of a disease or disease-causing organism) liable to be transmitted to people, organisms, etc. through the environment. （疾病，致病生物体）传染的，有传染性的 outbreaks of infectious diseases was polyneuritis infectious? a highly infectious virus Example sentencesExamples MPs poured out of the Commons potentially spreading any infectious agent. This cross sectional survey was not designed to provide direct evidence of transmission of infectious diseases in prison. Measles is highly infectious and could spread very quickly. Mumps is highly infectious and spreads rapidly in susceptible people living in close proximity. Must my rejected bag secretly be destroyed to prevent the spread of infectious agents? It was thought that close contact with an infected person was needed for the infectious agent to spread from one person to another. Our feeling, however, is that they most likely contain a single infectious capsid. Molecular biology has had a major impact on medical microbiology and infectious disease. Severe acute respiratory syndrome is highly infectious and potentially lethal. Glandular fever is an infectious illness that causes swelling of the lymph nodes. Bone lesions from infectious disease or parasitic infection are rare. There are also some major infectious diseases for which vaccinations have not been developed. Against this background, the emergence of new human infectious diseases or viruses is unsurprising. The classic means of protecting persons exposed to infectious diseases is vaccination. He was taken to the infectious diseases hospital three days later. What if I tell myself the rash will go away and it becomes infectious and spreads even further? However, conjunctivitis caused by the common cold is very infectious and can spread rapidly between people. The cull of a flock of 9,000 pheasants was under way yesterday after confirmation of a highly infectious bird disease. Clean bathroom surfaces also help prevent the spread of infectious germs. However, the bacteria are not as infectious as the common cold and cannot be spread by casual contact. Unravelling the genetic and environmental determinants of infectious disease will soon be feasible. Lyme disease is an infectious illness caused by the bacterium Borrelia burgdorferi. Synonyms contagious, communicable, transmittable, transmissible, transferable, conveyable, spreadable, spreading informal catching technical epidemic, pandemic, epizootic dated infective 1.1 Liable to spread infection. 传播疾病的 the dogs may still be infectious 这些狗也许仍会传播疾病。 Example sentencesExamples Dutch botanist Martinus Bijerinck called this infectious fluid contagium vivum fluidum. Those treated can support their families and are likely to be less infectious. A person with glandular fever is most infectious when they have a fever (high temperature). By the way, colds spread through touching infectious surfaces or inhaling viruses. Some of the cheapest meat is stripped by machines and high-pressure jets from the bone, which is likely to be highly infectious in a sick cow. She was misdiagnosed with gastro-enteritis, and transferred to Castle Hill because it was felt she was infectious. Synonyms contaminating, germ-laden, polluting, pestilential, virulent poisonous, toxic, noxious 2Likely to spread or influence others in a rapid manner. 有感染力的，具影响力的 a loud infectious laugh her enthusiasm is infectious 她的热情具有感染力。 Example sentencesExamples Poverty is something that is contagious and infectious in our community. He had a wonderful sense of humour and an infectious, hearty laugh. The balance of chilly remove and infectious abandon that Morton conveys adds much to Morvern's allure. Valencians don't simply watch fireworks - they almost commune with them and the feeling is infectious. Nevertheless, she understands the essence of the formula, and applies it in a manner that is infectious. She had a warm personality combined with a loud infectious laugh. It does make you an energetic person, and one who has an infectious and personable manner. The problem is once you fall for the guy with the infectious laugh or the girl that takes your breath away, you have to get them to notice you. His quick wit and absolutely infectious laugh are almost as entertaining as the show itself. His infectious enthusiasm for technology is spread through his weblog. Seeing Chris thrashing around his drum kit made Steven smile and the infectious smile spread to Donnie. The author's enthusiasm and infectious desire to communicate his ideas comes across loud and clear. The dog had an infectious energy, a boisterous nature, that spread wherever he bounded. Darlene simply had the kind of infectious positive attitude that influenced everyone in her presence. Not only that, but it's the infectious happiness of the manner, with the very sterile, factual detailing of demise that is the content. He grinned slowly, an infectious smile that soon spread, spanning ear to ear. Your enthusiasm is infectious; it spreads as rapidly through conversations as it does through bloodlines. Neville Garden communicated his own infectious enthusiasm, week after week for many years, through his work as a critic. Long had he been plagued by an infectious fear of spreading weakness in times that demanded strength. A most pleasant man, his naturally friendly manner and infectious good humour have made him a popular member of the Ship's Company. Synonyms irresistible, compelling contagious, catching, spreading, communicable Usage On the differences in meaning between infectious and contagious, see contagious Derivatives infectiously adverb ɪnˈfɛkʃəsliɪnˈfɛkʃəsli At the same time, a European-derived painting style called Neo-Expressionism proved to be infectiously popular amongst the Art Institute students. Example sentencesExamples Now 55, Clifford is still infectiously enthusiastic. Though markedly different, both have strong elements of dance, which had the conductor almost pirouetting on the rostrum, thus coaxing infectiously springing rhythms from his colleagues. Churchill's infectiously ebullient personality had served his government and his country well in the First World War as well as the Second. If Robertson is infectiously bombastic about theatre, there's a surprising nonchalance about his career on screen. infectiousness noun ɪnˈfɛkʃəsnəsɪnˈfɛkʃəsnəs If one takes these vibrios and cultivates them on nutritional media in the lab, or uses them to infect animal models, their infectiousness declines rapidly. Example sentencesExamples Given that assumption, a mathematical model was developed using data on how infectiousness develops in sheep. He said infectiousness would reduce when rashes appear three to four days after symptoms' onset. An overwhelming majority of persons living with HIV infection do not get detected and remain unknowing of their potential illness and infectiousness to others. Perhaps this is why the film is best seen in a crowded theatre, where the infectiousness of cathartic emotion can have full play. Definition of infectious in US English: infectious adjectiveinˈfekSHəsɪnˈfɛkʃəs 1(of a disease or disease-causing organism) likely to be transmitted to people, organisms, etc., through the environment. （疾病，致病生物体）传染的，有传染性的 Example sentencesExamples Clean bathroom surfaces also help prevent the spread of infectious germs. The classic means of protecting persons exposed to infectious diseases is vaccination. What if I tell myself the rash will go away and it becomes infectious and spreads even further? Lyme disease is an infectious illness caused by the bacterium Borrelia burgdorferi. There are also some major infectious diseases for which vaccinations have not been developed. Bone lesions from infectious disease or parasitic infection are rare. Molecular biology has had a major impact on medical microbiology and infectious disease. Severe acute respiratory syndrome is highly infectious and potentially lethal. It was thought that close contact with an infected person was needed for the infectious agent to spread from one person to another. Measles is highly infectious and could spread very quickly. Unravelling the genetic and environmental determinants of infectious disease will soon be feasible. This cross sectional survey was not designed to provide direct evidence of transmission of infectious diseases in prison. However, the bacteria are not as infectious as the common cold and cannot be spread by casual contact. MPs poured out of the Commons potentially spreading any infectious agent. The cull of a flock of 9,000 pheasants was under way yesterday after confirmation of a highly infectious bird disease. Against this background, the emergence of new human infectious diseases or viruses is unsurprising. Mumps is highly infectious and spreads rapidly in susceptible people living in close proximity. Must my rejected bag secretly be destroyed to prevent the spread of infectious agents? Our feeling, however, is that they most likely contain a single infectious capsid. Glandular fever is an infectious illness that causes swelling of the lymph nodes. However, conjunctivitis caused by the common cold is very infectious and can spread rapidly between people. He was taken to the infectious diseases hospital three days later. Synonyms contagious, communicable, transmittable, transmissible, transferable, conveyable, spreadable, spreading 1.1 Likely to spread infection. 传播疾病的 the dogs may still be infectious 这些狗也许仍会传播疾病。 Example sentencesExamples She was misdiagnosed with gastro-enteritis, and transferred to Castle Hill because it was felt she was infectious. A person with glandular fever is most infectious when they have a fever (high temperature). By the way, colds spread through touching infectious surfaces or inhaling viruses. Dutch botanist Martinus Bijerinck called this infectious fluid contagium vivum fluidum. Those treated can support their families and are likely to be less infectious. Some of the cheapest meat is stripped by machines and high-pressure jets from the bone, which is likely to be highly infectious in a sick cow. Synonyms contaminating, germ-laden, polluting, pestilential, virulent 1.2 Likely to spread or influence others in a rapid manner. 有感染力的，具影响力的 her enthusiasm is infectious 她的热情具有感染力。 Example sentencesExamples His quick wit and absolutely infectious laugh are almost as entertaining as the show itself. The problem is once you fall for the guy with the infectious laugh or the girl that takes your breath away, you have to get them to notice you. Poverty is something that is contagious and infectious in our community. A most pleasant man, his naturally friendly manner and infectious good humour have made him a popular member of the Ship's Company. Nevertheless, she understands the essence of the formula, and applies it in a manner that is infectious. He grinned slowly, an infectious smile that soon spread, spanning ear to ear. Darlene simply had the kind of infectious positive attitude that influenced everyone in her presence. It does make you an energetic person, and one who has an infectious and personable manner. Your enthusiasm is infectious; it spreads as rapidly through conversations as it does through bloodlines. The balance of chilly remove and infectious abandon that Morton conveys adds much to Morvern's allure. His infectious enthusiasm for technology is spread through his weblog. The author's enthusiasm and infectious desire to communicate his ideas comes across loud and clear. She had a warm personality combined with a loud infectious laugh. He had a wonderful sense of humour and an infectious, hearty laugh. Neville Garden communicated his own infectious enthusiasm, week after week for many years, through his work as a critic. Long had he been plagued by an infectious fear of spreading weakness in times that demanded strength. Not only that, but it's the infectious happiness of the manner, with the very sterile, factual detailing of demise that is the content. The dog had an infectious energy, a boisterous nature, that spread wherever he bounded. Seeing Chris thrashing around his drum kit made Steven smile and the infectious smile spread to Donnie. Valencians don't simply watch fireworks - they almost commune with them and the feeling is infectious. Synonyms irresistible, compelling Usage On the differences in meaning between infectious and contagious, see contagious
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