mastoid process mastoidotomy • mastological · · · Info · Definitions · Synonyms · Characters · · mastoid process · · Text Common · · Latin · · Scripts 15 · · Length 4 · · Syllables Definitions · · · (noun) process of the temporal bone behind the ear at the base of the skull. Synonyms: mastoid, mastoid process, mastoid bone, mastoidal. · · Noun Definition 1 Synonyms · · · mastoid · · Synonym 1 mastoid bone · · Synonym 2 mastoidal · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074