sylvian fissure sylvian aqueduct • sylvia plath · · · Info · Definitions · Synonyms · Characters · · sylvian fissure · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres. Synonyms: fissure of Sylvius, Sylvian fissure, lateral cerebral sulcus, sulcus lateralis cerebri. · · Noun Definition 1 Synonyms · · · fissure of sylvius · · Synonym 1 lateral cerebral sulcus · · Synonym 2 sulcus lateralis cerebri · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075 v latin small letter v U+0076 y latin small letter y U+0079