adrenal medulla vs endocrine

adrenal medulla and endocrine both are nouns.

Word	Noun	Adjective	Verb	Adverb
adrenal medulla	Yes	No	No	No
endocrine	Yes	Yes	No	No

As nouns, endocrine is a hypernym of adrenal medulla; that is, endocrine is a word with a broader meaning than adrenal medulla:

adrenal medulla: the medulla of the adrenal gland; secretes epinephrine
endocrine: any of the glands of the endocrine system that secrete hormones directly into the bloodstream

Other hypernyms of adrenal medulla include ductless gland, endocrine gland, medulla.

adrenal medulla (noun)	endocrine (noun)
the medulla of the adrenal gland; secretes epinephrine	the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
	any of the glands of the endocrine system that secrete hormones directly into the bloodstream

adrenal medulla (adjective)	endocrine (adjective)
	of or belonging to endocrine glands or their secretions