ゆあか 湯垢 LinksSentence search for 湯垢Sentence search for ゆあかSentence search for 湯あかKanji details for 湯 and 垢Edit in JMdict Noun1. scale (i.e. hard water coating in a kettle, etc.); furOther forms湯あか 【ゆあか】 Discussions Log in to talk about this word.