こうきくさ 小浮草 LinksSentence search for 小浮草Sentence search for こうきくさSentence search for コウキクサKanji details for 小, 浮 and 草Edit in JMdict Noun1. common duckweed (Lemna minor); lesser duckweedUsually written using kana aloneOther formsコウキクサ Discussions Log in to talk about this word.