poeciliid fish vs live-bearer

poeciliid fish and live-bearer both are nouns.

Word	Noun	Adjective	Verb	Adverb
poeciliid fish	Yes	No	No	No
live-bearer	Yes	No	No	No

As nouns, poeciliid fish and live-bearer are synonyms defined as:

poeciliid fish and live-bearer: small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control

Other synonyms of poeciliid fish include poeciliid, topminnow.

poeciliid fish (noun)	live-bearer (noun)
small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control	small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control