管圆线虫 guǎnyuánxiànchóng eelworm Origin Definitions Defs Strokes Stroke Words Sentences Sents 管 guǎn noun tube tube; pipe; cylinder; any long, hollow cylindrical object圆 圓 yuán adjective round round; circular; spherical; of the moon, full线虫 線蟲 xiànchóng nematode any of a large group of thread-like worms, including parasitic species like roundworms and pinworms