anencephalic vs anencephalous

anencephalic and anencephalous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
anencephalic	No	Yes	No	No
anencephalous	No	Yes	No	No

As adjectives, anencephalic and anencephalous are synonyms defined as:

anencephalic and anencephalous: characterized by partial or total absence of a brain

anencephalic (adjective)	anencephalous (adjective)
characterized by partial or total absence of a brain	characterized by partial or total absence of a brain