Noun poeciliid fish has 1 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
    --1 is a kind of cypriniform fish
    --1 is a member of Poeciliidae, family Poeciliidae
    --1 has particulars:
     mosquitofish, Gambusia affinis; platy, Platypoecilus maculatus; mollie, molly
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