stratum corneum vs corneum

stratum corneum and corneum both are nouns.

Word	Noun	Adjective	Verb	Adverb
stratum corneum	Yes	No	No	No
corneum	Yes	No	No	No

As nouns, stratum corneum and corneum are synonyms defined as:

stratum corneum and corneum: the outermost layer of the epidermis consisting of dead cells that slough off

Other synonyms of stratum corneum include horny layer.

stratum corneum (noun)	corneum (noun)
the outermost layer of the epidermis consisting of dead cells that slough off	the outermost layer of the epidermis consisting of dead cells that slough off