What does 虫歯 mean?
虫歯 is a Japanese noun meaning “tooth decay” or “cavity” in English. It is written as 虫歯 in kanji, むしば in hiragana, and mushiba in romaji. This word is part of JLPT N3 vocabulary.
Example sentences
虫歯ができたみたいだ。
I think I have a cavity.
甘いものを食べすぎると虫歯になる。
Eating too many sweets gives you tooth decay.