乳突竇 Save Create a free account to save words Simplified: 乳突窦 rǔtūdòu ㄖㄨˇ ㄊㄨ ㄉㄡˋ 男 女 mastoid antrum anatomy Character by character 乳(rǔ)breast 突(tū)dash 竇(dòu)hole Sign up for a free account to save words and review them A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0