名詞 blackhead:

1. a black-tipped plug clogging a pore of the skin
   同義詞：comedo

black.head

n.（名詞）
Medicine A plug of keratin and sebum within a hair follicle that is blackened at the surface.Also called comedo
【醫(yī)學(xué)】 黑頭粉刺：在帶毛小囊內(nèi)由角朊和脂肪組成的粉刺，表面呈黑色也作 comedo
An infectious disease of turkeys and some wildfowl that is caused by a protozoan(Histomonas meleagridis) and results in lesions of the intestine and liver. Also called enterohepatitis ,histomoniasis ,infectious enterohepatitis
黑頭病：火雞和一些野禽的一種傳染病，由一種原生動(dòng)物（黑頭病組織原蟲） 引起，并會(huì)導(dǎo)致腸及肝的損害 也作 enterohepatitis,histomoniasis,infectious enterohepatitis
Any of various birds, such as the scaup, with dark head markings.
黑頭鳥：一種以頭部呈黑色為特征的鳥，如斑背潛鴨