きゅういん 蚯蚓 LinksSentence search for 蚯蚓Sentence search for きゅういんKanji details for 蚯 and 蚓Edit in JMdict Noun1. earthwormRare term, See also ミミズミミズもとき時にはどじょう土壌にゆうえき有益です。Worms are sometimes beneficial to soil. Discussions Log in to talk about this word.