lateral cerebral sulcus vs Sylvian fissure

lateral cerebral sulcus and Sylvian fissure both are nouns.

Word	Noun	Adjective	Verb	Adverb
lateral cerebral sulcus	Yes	No	No	No
Sylvian fissure	Yes	No	No	No

As nouns, lateral cerebral sulcus and Sylvian fissure are synonyms defined as:

lateral cerebral sulcus and Sylvian fissure: the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres

Other synonyms of lateral cerebral sulcus include fissure of Sylvius, sulcus lateralis cerebri.

lateral cerebral sulcus (noun)	Sylvian fissure (noun)
the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres	the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres