archipallium vs cortex

archipallium and cortex both are nouns.

Word	Noun	Adjective	Verb	Adverb
archipallium	Yes	No	No	No
cortex	Yes	No	No	No

As nouns, cortex is a hypernym of archipallium; that is, cortex is a word with a broader meaning than archipallium:

archipallium: the olfactory cortex of the cerebrum
cortex: the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum

Other hypernyms of archipallium include cerebral cortex, cerebral mantle, pallium.

archipallium (noun)	cortex (noun)
the olfactory cortex of the cerebrum	the tissue forming the outer layer of an organ or structure in plant or animal
	the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
	the tissue that surrounds the lens nucleus