|1.||Technical name: comedo a black-tipped plug of fatty matter clogging a pore of the skin, esp the duct of a sebaceous gland|
|2.||Technical name: infectious enterohepatitis an infectious and often fatal disease of turkeys and some other fowl caused by the parasitic protozoa Histomonas meleagridis|
|3.||any of various birds, esp gulls or ducks, with black plumage on the head|
blackhead black·head (blāk'hěd')
A plug of keratin and sebum within a hair follicle that is blackened at the surface. Also called open comedo.