geometrid moth vs geometrid

geometrid moth and geometrid both are nouns.

Word	Noun	Adjective	Verb	Adverb
geometrid moth	Yes	No	No	No
geometrid	Yes	No	No	No

As nouns, geometrid moth and geometrid are synonyms defined as:

geometrid moth and geometrid: slender-bodied broad-winged moth whose larvae are called measuring worms

geometrid moth (noun)	geometrid (noun)
slender-bodied broad-winged moth whose larvae are called measuring worms	slender-bodied broad-winged moth whose larvae are called measuring worms