acromegalic vs acromegaly

acromegalic is not a noun while acromegaly is a noun.

Word	Noun	Adjective	Verb	Adverb
acromegalic	No	Yes	No	No
acromegaly	Yes	No	No	No

acromegalic (noun)	acromegaly (noun)
	enlargement of bones of hands and feet and face; often accompanied by headache and muscle pain and emotional disturbances; caused by overproduction of growth hormone by the anterior pituitary gland (due to a tumor)

acromegalic (adjective)	acromegaly (adjective)
marked or affected by enlargement or hypertrophy of the extremities or the face