鞭毛蟲 biānmáochóng flagellate Origin Definitions Defs Strokes Stroke Words Sentences Sents 鞭毛 biānmáo flagellum a slender threadlike structure that allows many protozoa, bacteria, and spermatozoa to swim; literally "whip hair"虫 蟲 chóng noun insect lower form of animal life, including insects, larvae, worms, and similar creatures