fissure of Sylvius vs sulcus lateralis cerebri

fissure of Sylvius and sulcus lateralis cerebri both are nouns.

Word	Noun	Adjective	Verb	Adverb
fissure of Sylvius	Yes	No	No	No
sulcus lateralis cerebri	Yes	No	No	No

As nouns, fissure of Sylvius and sulcus lateralis cerebri are synonyms defined as:

fissure of Sylvius and sulcus lateralis cerebri: the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres

Other synonyms of fissure of Sylvius include lateral cerebral sulcus, Sylvian fissure.

fissure of Sylvius (noun)	sulcus lateralis cerebri (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