头足纲 tóuzúgāng Cephalopoda Origin Definitions Defs Strokes Stroke Words Sentences Sents 头 頭 tóu noun head the head of a human or animal; hair or hairstyle足 zú nounverb foot (bound form) foot; leg; the lower extremity of the leg纲 綱 gāng class A level in biological classification, ranking below phylum (门 mén) and above order (目 mù)