Read Edit View history 乳突竇 rǔtūdòu mastoid antrum Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 乳突窦/ 乳突竇 rǔtūdòu mastoid antrum mastoid antrum; the air space in the mastoid bone behind the middle ear Edit Delete References Add reference No references for this word.
乳突窦/ 乳突竇 rǔtūdòu mastoid antrum mastoid antrum; the air space in the mastoid bone behind the middle ear Edit Delete