trigeminal trigamy • trigeminous · · · Info · Definitions · Synonyms · Characters · · trigeminal · · Text Latin · · Script 10 · · Length Definitions · · · (noun) the main sensory nerve of the face and motor nerve for the muscles of mastication. Synonyms: trigeminal nerve, trigeminus, nervus trigeminus, fifth cranial nerve. · · Noun Definition 1 Synonyms · · · trigeminal nerve · · Synonym 1 trigeminus · · Synonym 2 nervus trigeminus · · Synonym 3 fifth cranial nerve · · Synonym 4 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074