blackhead

Tanımlar (İngilizce)

1. isim 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.

   “See there! A son is born And we pronounce him fit to fight There are blackheads on his shoulders And he pees himself in the night.”

2. isim A form of histomoniasis in poultry, characterized by cyanotic discoloration on the bird's head.
3. isim A scaup: any of various ducks of the genus Aythya.