osseous labyrinth osseous • osseously · · · Info · Definitions · Synonyms · Characters · · osseous labyrinth · · Text Common · · Latin · · Scripts 17 · · Length 5 · · Syllables Definitions · · · (noun) cavity in the petrous part of the temporal bone that contains the membranous labyrinth. Synonyms: bony labyrinth, osseous labyrinth. · · Noun Definition 1 Synonyms · · · bony labyrinth · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079