英语释义
1. a small plug of darkened sebum and dead skin cells that fills a pore of the skin especially on the face — called also comedo, open comedo — compare whitehead
2. a destructive disease of turkeys and related birds caused by a protozoan (Histomonas meleagridis) that invades the intestinal ceca and liver
3. a larval clam or mussel attached to the skin or gills of a freshwater fish
4. a small, inflamed area on the skin with a dark spot in the middle
5. a darkened bit of oily material blocking a pore in the skin
6. a small plug of sebum blocking the duct of a sebaceous gland especially on the face — compare milium
7. a destructive disease of turkeys and related birds caused by a protozoan of the genus Histomonas (H. meleagridis) that invades the intestinal ceca and liver — called also enterohepatitis, histomoniasis, infectious enterohepatitis