| 1. | any small New World fish of the family Poeciliidae, of fresh or brackish tropical and temperate waters, including the mosquitofish, guppies, and mollies. |
| 2. | belonging or pertaining to the family Poeciliidae. |

| poeciliid | |
noun | |
| small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control [syn: topminnow] |