Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun topminnow

2 senses of topminnow

Sense 1
topminnow, poeciliid fish, poeciliid, live-bearer -- (small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control)
       => cypriniform fish -- (a soft-finned fish of the order Cypriniformes)

Sense 2
swordtail, helleri, topminnow, Xyphophorus helleri -- (freshwater fish of Central America having a long swordlike tail; popular aquarium fish)
       => cyprinodont -- (any member of the family Cyprinodontidae)