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单词 comedo
释义

Definition of comedo in English:

comedo

nounPlural comedones ˈkɒmɪdəʊkəˈmiːdəʊˈkɑməˌdoʊ
  • technical term for blackhead (sense 1)
    Example sentencesExamples
    • If the plug enlarges and is on the surface of the skin, exposed to the air, it is called an open comedo, or blackhead.
    • The first technique works wonders in treating large boils, abscesses (whether hot or cold), and evidently, also big or tight clusters of acne pustules and comedones.
    • The basic acne lesion, called the comedo (KOM-e-do), is simply an enlarged and plugged hair follicle.
    • This is a chronic inflammation of the hair follicle and sebaceous gland (pilosebaceous unit) characterized by pustules, comedones, cysts, and scars, and it affects most adolescents.
    • If the plugged follicle, or comedo, stays beneath the skin, it is called a closed comedo or whitehead.
    • This subtype resembles acne vulgaris, but with the absence of comedones.
    • Steroid-induced acne often is of a distinctive variety, being predominantly formed of inflammatory papules and pustules, which are often small and uniformly sized, with few comedones.
    • If the lipid material accumulates in the hair follicle, we have the formation of comedones, or blackheads.
    • It most often manifests in adolescents as comedones, papulopustules, and nodulocysts.
    • A closed comedo, or white head, occurs when the blockage is complete.
    • Certain occupations and activities seem to favour the formation of comedones or acne.
    • Retinoids, which are derivatives of vitamin A, function by slowing the desquamation process, thereby decreasing the number of comedones and microcomedones.
    • This obstruction leads to the formation of comedones, which can become inflamed because of overgrowth of Propionibacterium acnes.
    • In the patient with comedones and inflammatory lesions, a comedolytic agent such as tretinoin, adapalene or azelaic acid may be combined with benzoyl peroxide or a topical antibiotic.
    • This results in enlargement of the sebaceous glands, which can eventually lead to the development of comedones (black-heads).

Origin

Mid 19th century: from Latin, literally ‘glutton’, from comedere ‘eat up’, from com- ‘altogether’ + edere ‘eat’. Used formerly as a name for parasitic worms, the term here alludes to the sebaceous secretions resembling small worms that can be squeezed from blackheads.

Definition of comedo in US English:

comedo

nounˈkäməˌdōˈkɑməˌdoʊ
  • technical term for blackhead (sense 1)
    Example sentencesExamples
    • Certain occupations and activities seem to favour the formation of comedones or acne.
    • If the plug enlarges and is on the surface of the skin, exposed to the air, it is called an open comedo, or blackhead.
    • This subtype resembles acne vulgaris, but with the absence of comedones.
    • The first technique works wonders in treating large boils, abscesses (whether hot or cold), and evidently, also big or tight clusters of acne pustules and comedones.
    • This results in enlargement of the sebaceous glands, which can eventually lead to the development of comedones (black-heads).
    • Steroid-induced acne often is of a distinctive variety, being predominantly formed of inflammatory papules and pustules, which are often small and uniformly sized, with few comedones.
    • If the plugged follicle, or comedo, stays beneath the skin, it is called a closed comedo or whitehead.
    • The basic acne lesion, called the comedo (KOM-e-do), is simply an enlarged and plugged hair follicle.
    • In the patient with comedones and inflammatory lesions, a comedolytic agent such as tretinoin, adapalene or azelaic acid may be combined with benzoyl peroxide or a topical antibiotic.
    • Retinoids, which are derivatives of vitamin A, function by slowing the desquamation process, thereby decreasing the number of comedones and microcomedones.
    • This obstruction leads to the formation of comedones, which can become inflamed because of overgrowth of Propionibacterium acnes.
    • A closed comedo, or white head, occurs when the blockage is complete.
    • It most often manifests in adolescents as comedones, papulopustules, and nodulocysts.
    • This is a chronic inflammation of the hair follicle and sebaceous gland (pilosebaceous unit) characterized by pustules, comedones, cysts, and scars, and it affects most adolescents.
    • If the lipid material accumulates in the hair follicle, we have the formation of comedones, or blackheads.

Origin

Mid 19th century: from Latin, literally ‘glutton’, from comedere ‘eat up’, from com- ‘altogether’ + edere ‘eat’. Used formerly as a name for parasitic worms, the term here alludes to the sebaceous secretions resembling small worms that can be squeezed from blackheads.

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更新时间:2024/11/11 7:40:19