anapsid vs anapsid reptile

anapsid and anapsid reptile both are nouns.

Word	Noun	Adjective	Verb	Adverb
anapsid	Yes	No	No	No
anapsid reptile	Yes	No	No	No

As nouns, anapsid and anapsid reptile are synonyms defined as:

anapsid and anapsid reptile: primitive reptile having no opening in the temporal region of the skull; all extinct except turtles

anapsid (noun)	anapsid reptile (noun)
primitive reptile having no opening in the temporal region of the skull; all extinct except turtles	primitive reptile having no opening in the temporal region of the skull; all extinct except turtles