delineation vs description

delineation and description both are nouns.

Word	Noun	Adjective	Verb	Adverb
delineation	Yes	No	No	No
description	Yes	No	No	No

As nouns, description is a hypernym of delineation; that is, description is a word with a broader meaning than delineation:

Other hypernyms of delineation include verbal description.

delineation (noun)	description (noun)
representation by drawing or painting etc	sort or variety
a drawing of the outlines of forms or objects	the act of describing something
a graphic or vivid verbal description	a statement that represents something in words