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n. pl. com·e·dos or com·e·do·nes (-dō′nēz)
The primary lesion of acne vulgaris, consisting of a hair follicle that is occluded with sebum and keratin; a blackhead or whitehead.

[Latin comedō, glutton (from a comparison of the wormlike shape of the waxy material that can be squeezed from a blackhead to a worm believed to feed on the body), from comedere, to eat up : com-, intensive pref.; see com- + edere, to eat; see ed- in Indo-European roots.]


n, pl comedos or comedones (ˌkɒmɪˈdəʊniːz)
(Pathology) pathol the technical name for blackhead
[C19: from New Latin, from Latin: glutton, from comedere to eat up, from com- (intensive) + edere to eat]



1. a small, black-tipped fatty mass in a skin follicle, esp. of the face; comedo.
2. any of several birds having a black head.
3. an intestinal and liver disease of turkeys, chickens, and related birds, caused by the protozoan Histomonas meleagridas, often darkening the skin of the head.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.comedo - a black-tipped plug clogging a pore of the skincomedo - a black-tipped plug clogging a pore of the skin
blemish, mar, defect - a mark or flaw that spoils the appearance of something (especially on a person's body); "a facial blemish"
cutis, skin, tegument - a natural protective body covering and site of the sense of touch; "your skin is the largest organ of your body"


n (pl comedones) comedón m, espinilla (fam)
References in periodicals archive ?
Use a product with retinol at bedtime if you have comedones (i.
Comparing topical antibiotic treatment for acne with a novel cosmetic formulation, Brigitte Dreno, MD, PhD, and her colleagues found that healthy skin had fewer surface staphylococci than did skin with comedones or papulopustular eruptions (P = .
Acne vulgaris is a chronic inflammatory disease of pilosebaceous units characterized by comedones, papules, pustules, nodules, cysts, abscesses, and later on sometimes as widespread scarring.
In a large retrospective case series, various skin abnormalities such as follicular papules, comedones, hypertrophic pilosebaceous units, angiokeratoma of Fordyce, leucoderma macules, and haemangiomas have been shown to be associated with NLCS.
A moderate amount of scattered open comedones on the forehead, cheeks, and posterior trunk.
However, it is characterized by open and closed comedones, papules, and pustules and, in severe cases, nodules and cysts that may leave postinflammatory hyperpigmentation and scarring.
Only 11 cases of comedones after VZV infections are reported by our literature review.
Sebum has a protective function, keeping the skin and hair hydrated among other things, but it can also block sebaceous gland ducts and lead to comedones, commonly known as whiteheads and blackheads.
Acne vulgaris is a chronic inflammatory dermatosis of the pilosebaceous follicles, characterized by comedones, papules, pustules, cysts, nodules, and scars.
La hiperqueratosis folicular puede dar como resultado una abertura exagerada del foliculo y la formacion de comedones.
1-3] It is a chronic inflammatory disease of the pilosebaceous units characterized by seborrhea, comedones, erythematous papules, and pustules.
Features unusual for MF but seen in FMF are acneiform lesions, cystic comedones, alopecia, and follicular papules.