nanocephalic vs microcephalous

nanocephalic and microcephalous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nanocephalic	No	Yes	No	No
microcephalous	No	Yes	No	No

As adjectives, nanocephalic and microcephalous are synonyms defined as:

nanocephalic and microcephalous: having an abnormally small head and underdeveloped brain

Other synonyms of nanocephalic include microcephalic.

nanocephalic (adjective)	microcephalous (adjective)
having an abnormally small head and underdeveloped brain	having an abnormally small head and underdeveloped brain