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单词 tropic
释义

tropic1

noun ˈtrɒpɪkˈtrɑpɪk
  • 1The parallel of latitude 23°26ʹ north (tropic of Cancer) or south (tropic of Capricorn) of the equator.

    回归线(纬度均为23°26'的赤道北、南两条平行线:北回归线 [tropic of Caucer]和南回归线 [tropic of Capricorn])

    Example sentencesExamples
    • The Ellsworth Base lay above the Antarctic sea along what once was the tropic of Capricorn.
    • The vineyard area extends from the tropic of Capricorn in the north to the 40th parallel in the south.
    • North of the tropic of Capricorn, the sun will be in the southern sky during summer.
    • The trade has had a big impact on the meat industry, especially in the top end where only two abattoirs remain open north of the tropic of Capricorn.
    • These are birds of the Antarctic and never fly North of the tropic of Capricorn.
    1. 1.1Astronomy Each of two corresponding circles on the celestial sphere where the sun appears to turn after reaching its greatest declination, marking the northern and southern limits of the ecliptic.
      〔天文〕天球的回归线
      Example sentencesExamples
      • Accounts of the celestial sphere typically refer to other circles on its surface, including the arctic and Antarctic circles, the zodiac, tropics, and the solstitial and equinoctial colures.
      • A tropic point is the sun's position on the celestial sphere at the time of a solstice.
      • Then he briefly describes the four principal circles of the celestial sphere: equator, zodiac, and the two tropic circles.
    2. 1.2the tropics The region between the tropics of Cancer and Capricorn.
      热带(北、南回归线之间的地带)
      Example sentencesExamples
      • In the tropics, you can still find other, less desirable banana varieties, mainly grown as a starchy food staple rather than a sweet treat.
      • Generally, breeding seasons tend to be longer in the tropics than in the temperate zone.
      • Even in the tropics the water is rarely at body temperature so you will eventually lose heat.
      • It is extensively cultivated in marginal rainfall areas of the tropics and subtropics, and selected varieties are widely grown in temperate climates.
      • Transfusion-induced malaria continues its resurgence throughout much of the tropics and subtropics.
      • Common in the tropics, many species of bamboo grow in temperate climates as well.
      • The worm commonly known as dog heart worm, is widely dispersed and found in the tropics, subtropics and temperate zones.
      • Since we all stand to lose if the rich biological capital of the tropics is eroded, this is our problem too.
      • Typhoid fever continues to be a global health problem, especially in the tropics and subtropics.
      • The proportions may be different in the polar regions and the tropics.
      • The retreat of some taxa to the tropics and subtropics is partly explained by climatic cooling beginning in the Oligocene.
      • Each subtropical gyre is created by mountainous flows of air moving from the tropics toward the polar regions.
      • This sets up a system of interconnected deep and shallow currents that transport heat from the tropics to higher latitudes.
      • The group is normally confined to the tropics but some species are found in the temperate latitudes of the southern hemisphere.
      • Between 1970 and 2004 the average sea surface temperature in the tropics rose nearly 1 degree.
      • It is mainly cultivated for its dry seeds and green vegetable in dry areas of the tropics and subtropics.
      • The Indica group is found in lowland paddies of the tropics.
      • As a result, shells are comparatively thick and ornate in the tropics, and thin and plain at temperate and polar latitudes.
      • Even if you don't live in the tropics, you can enjoy exotic tropicals in your garden.
      • Sometimes you will find the best kayaking tours in the tropics or the ocean.
adjective ˈtrɒpɪkˈtrɑpɪk
  • another term for tropical (sense 1)
    Example sentencesExamples
    • But in her head, she was far, far away in an unknown tropic land with Abe.
    • A native of the tropic Americas, the cattleyas are a pseudobulb type and considered an orchid with training wheels.
    • ‘We've offered to improve the road, but the Navy won't let us,’ he shouted above the chirping of tiny frogs and the thwack of thick tropic brush against the windows.
    • Take for example a society in a desert where water is very scarce and at the same time consider a society that dwells in a tropic setting where water is plentiful.
    • At one point during his childhood, a new relationship of his mother's took him out of all the gray bleakness to a veritable tropic isle off the coast of the Carolinas.
    • He had known happiness, too, in Harlem, joy that glowed gloriously upon him like the high-noon sunlight of his tropic island home.
    • The terms began to consume my imagination, a pataphysical extravaganza of accumulating works & fields absorbed into this tropic zone without benefit of underlying unity of perspective.
    • After surviving their first two years on an uncharted Pacific island, our seven stranded castaways continue to ponder and pine after the day they'll be rescued from their tropic island nest.
    • Arguably, one of the best-kept secrets on the Cape Peninsula is that here, you find more species of plants acre for acre than probably any other area on the planet, surpassing even tropic rainforests in diversity.
    • They watched as white smoke drifted lazily upward in the humid tropic air.
    • Insects have adapted to nearly every ecological niche available, from arctic to tropic and mountaintop to river bottom.
    • I had visions of palm trees and blue lagoons and snorkelling under a tropic sky.
    • Because humid tropic and sub-tropic areas sustain tree growth at a rate three times that of temperate zones - thus tripling the carbon dioxide-sequestering effect - many projects are initiated in these regions.
    • Due to the variation of conditions along the route - from tropic to arctic - it is convenient to dress in layers you can either shed or add on.
    • So rarely are Polynesian, Micronesian, or Melanesian news items featured in the US media, that the image of dreamy tropic islands persists in the western imagination.
    • As the blistering midday sun slowly arced across the powder-blue tropic skies, temperatures soared to stifling, triple-digit figures.
    • Why is it so important to have a botanical garden in the wet tropic area of Australia?
    • Having moved to the tropic island to please his young bride and her family - Maximo, had always been, in his own way, homesick for the beauty and charm of ‘Italia’.
    • Bananas are typically thought of as a dessert course while the starchy plantains are cooked before eating and are considered a major staple of the tropic countries.
    • See the pyramids along the Nile. Watch the sun rise on a tropic isle.

Origin

Late Middle English (denoting the point on the ecliptic reached by the sun at the solstice): via Latin from Greek tropikos, from tropē 'turning', from trepein 'to turn'.

  • trophy from Late Middle English:

    Both tropic (Late Middle English) and trophy are ultimately from Greek trepein ‘to turn’. In ancient Greece and Rome a trophy was a pile of the weapons of a defeated army set up as a memorial of a victory. The attractive young trophy wife of a successful older man, is a term first used in the late 1980s. A tropic is a ‘turning point’, a point on the path through the sky that the sun can be seen to take through the year where, at the solstice, it appears to turn back again towards the equator.

Rhymes

ectopic, gyroscopic, heliotropic, horoscopic, isotopic, isotropic, kaleidoscopic, macroscopic, microscopic, misanthropic, myopic, philanthropic, phototropic, telescopic, topic

tropic2

adjective ˈtrəʊpɪkˈtrɑpɪk
  • 1Biology
    Relating to, consisting of, or exhibiting tropism.

    〔生〕向性的;亲…的

    Example sentencesExamples
    • At the multicellular level, tropic responses of the shoots and roots of flowering plants have been extensively studied.
    • The tropic response represents a growth response to altered auxin levels, involving growth stimulation and growth inhibition on opposite sides of the responding organ.
    • Early red and green algae may have been unable to radiate 1,500 MYA because of physical factors such as nutrient conditions or tropic competition.
    • In plant terms these are familiar growth and development phenomena, such as de-etiolation, flower induction, wind sway response, regeneration, induced bud break/germination, tropic bending, etc.
    • Gibberellins are a class of plant hormones that exert profound and diverse effects on plant growth and development and that have been implicated in tropic growth responses since the 1970s.
    • Charles Darwin performed early auxin experiments, observing the effects of a hypothetical substance modulating plant shoot elongation to allow tropic growth toward light.
  • 2Physiology

    variant spelling of trophic

tropic1

nounˈtrɑpɪkˈträpik
  • 1The parallel of latitude 23°26ʹ north (tropic of Cancer) or south (tropic of Capricorn) of the equator.

    回归线(纬度均为23°26'的赤道北、南两条平行线:北回归线 [tropic of Caucer]和南回归线 [tropic of Capricorn])

    Example sentencesExamples
    • North of the tropic of Capricorn, the sun will be in the southern sky during summer.
    • The Ellsworth Base lay above the Antarctic sea along what once was the tropic of Capricorn.
    • The vineyard area extends from the tropic of Capricorn in the north to the 40th parallel in the south.
    • The trade has had a big impact on the meat industry, especially in the top end where only two abattoirs remain open north of the tropic of Capricorn.
    • These are birds of the Antarctic and never fly North of the tropic of Capricorn.
    1. 1.1Astronomy Each of two corresponding circles on the celestial sphere where the sun appears to turn after reaching its greatest declination, marking the northern and southern limits of the ecliptic.
      〔天文〕天球的回归线
      Example sentencesExamples
      • A tropic point is the sun's position on the celestial sphere at the time of a solstice.
      • Then he briefly describes the four principal circles of the celestial sphere: equator, zodiac, and the two tropic circles.
      • Accounts of the celestial sphere typically refer to other circles on its surface, including the arctic and Antarctic circles, the zodiac, tropics, and the solstitial and equinoctial colures.
    2. 1.2the tropics The region between the tropics of Cancer and Capricorn.
      热带(北、南回归线之间的地带)
      Example sentencesExamples
      • The group is normally confined to the tropics but some species are found in the temperate latitudes of the southern hemisphere.
      • This sets up a system of interconnected deep and shallow currents that transport heat from the tropics to higher latitudes.
      • Generally, breeding seasons tend to be longer in the tropics than in the temperate zone.
      • As a result, shells are comparatively thick and ornate in the tropics, and thin and plain at temperate and polar latitudes.
      • Sometimes you will find the best kayaking tours in the tropics or the ocean.
      • The Indica group is found in lowland paddies of the tropics.
      • The worm commonly known as dog heart worm, is widely dispersed and found in the tropics, subtropics and temperate zones.
      • Each subtropical gyre is created by mountainous flows of air moving from the tropics toward the polar regions.
      • The retreat of some taxa to the tropics and subtropics is partly explained by climatic cooling beginning in the Oligocene.
      • It is mainly cultivated for its dry seeds and green vegetable in dry areas of the tropics and subtropics.
      • Since we all stand to lose if the rich biological capital of the tropics is eroded, this is our problem too.
      • The proportions may be different in the polar regions and the tropics.
      • Between 1970 and 2004 the average sea surface temperature in the tropics rose nearly 1 degree.
      • It is extensively cultivated in marginal rainfall areas of the tropics and subtropics, and selected varieties are widely grown in temperate climates.
      • Transfusion-induced malaria continues its resurgence throughout much of the tropics and subtropics.
      • Common in the tropics, many species of bamboo grow in temperate climates as well.
      • Even if you don't live in the tropics, you can enjoy exotic tropicals in your garden.
      • Even in the tropics the water is rarely at body temperature so you will eventually lose heat.
      • Typhoid fever continues to be a global health problem, especially in the tropics and subtropics.
      • In the tropics, you can still find other, less desirable banana varieties, mainly grown as a starchy food staple rather than a sweet treat.
adjectiveˈtrɑpɪkˈträpik
  • another term for tropical (sense 1)
    Example sentencesExamples
    • I had visions of palm trees and blue lagoons and snorkelling under a tropic sky.
    • Having moved to the tropic island to please his young bride and her family - Maximo, had always been, in his own way, homesick for the beauty and charm of ‘Italia’.
    • Bananas are typically thought of as a dessert course while the starchy plantains are cooked before eating and are considered a major staple of the tropic countries.
    • Why is it so important to have a botanical garden in the wet tropic area of Australia?
    • The terms began to consume my imagination, a pataphysical extravaganza of accumulating works & fields absorbed into this tropic zone without benefit of underlying unity of perspective.
    • He had known happiness, too, in Harlem, joy that glowed gloriously upon him like the high-noon sunlight of his tropic island home.
    • Insects have adapted to nearly every ecological niche available, from arctic to tropic and mountaintop to river bottom.
    • At one point during his childhood, a new relationship of his mother's took him out of all the gray bleakness to a veritable tropic isle off the coast of the Carolinas.
    • See the pyramids along the Nile. Watch the sun rise on a tropic isle.
    • So rarely are Polynesian, Micronesian, or Melanesian news items featured in the US media, that the image of dreamy tropic islands persists in the western imagination.
    • Because humid tropic and sub-tropic areas sustain tree growth at a rate three times that of temperate zones - thus tripling the carbon dioxide-sequestering effect - many projects are initiated in these regions.
    • ‘We've offered to improve the road, but the Navy won't let us,’ he shouted above the chirping of tiny frogs and the thwack of thick tropic brush against the windows.
    • A native of the tropic Americas, the cattleyas are a pseudobulb type and considered an orchid with training wheels.
    • Take for example a society in a desert where water is very scarce and at the same time consider a society that dwells in a tropic setting where water is plentiful.
    • After surviving their first two years on an uncharted Pacific island, our seven stranded castaways continue to ponder and pine after the day they'll be rescued from their tropic island nest.
    • Due to the variation of conditions along the route - from tropic to arctic - it is convenient to dress in layers you can either shed or add on.
    • They watched as white smoke drifted lazily upward in the humid tropic air.
    • Arguably, one of the best-kept secrets on the Cape Peninsula is that here, you find more species of plants acre for acre than probably any other area on the planet, surpassing even tropic rainforests in diversity.
    • But in her head, she was far, far away in an unknown tropic land with Abe.
    • As the blistering midday sun slowly arced across the powder-blue tropic skies, temperatures soared to stifling, triple-digit figures.

Origin

Late Middle English (denoting the point on the ecliptic reached by the sun at the solstice): via Latin from Greek tropikos, from tropē ‘turning’, from trepein ‘to turn’.

tropic2

adjectiveˈträpikˈtrɑpɪk
  • 1Biology
    Relating to, consisting of, or exhibiting tropism.

    〔生〕向性的;亲…的

    Example sentencesExamples
    • In plant terms these are familiar growth and development phenomena, such as de-etiolation, flower induction, wind sway response, regeneration, induced bud break/germination, tropic bending, etc.
    • Charles Darwin performed early auxin experiments, observing the effects of a hypothetical substance modulating plant shoot elongation to allow tropic growth toward light.
    • Early red and green algae may have been unable to radiate 1,500 MYA because of physical factors such as nutrient conditions or tropic competition.
    • At the multicellular level, tropic responses of the shoots and roots of flowering plants have been extensively studied.
    • The tropic response represents a growth response to altered auxin levels, involving growth stimulation and growth inhibition on opposite sides of the responding organ.
    • Gibberellins are a class of plant hormones that exert profound and diverse effects on plant growth and development and that have been implicated in tropic growth responses since the 1970s.
  • 2Physiology

    variant spelling of trophic
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