blackhead
/ˈblæk.hɛd/ noun
Forms blackheads
- noun (countable, medicine) A type of comedo, a skin blemish, a type of acne vulgaris, where a pore becomes clogged with a dark, hard, cheesy keratin-filled substance forming a hard black "head" on the skin's surface.
- noun (uncountable) A form of histomoniasis in poultry, characterized by cyanotic discoloration on the bird's head.
- noun (countable) A scaup: any of various ducks of the genus Aythya.
Synonyms
Etymology
From black + head.
Webster’s 1913
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “blackhead”, CC BY-SA 4.0. Details