any small New World fish of the family Poeciliidae, of fresh or brackish tropical and temperate waters, including the mosquitofish, guppies, and mollies.


belonging or pertaining to the family Poeciliidae.

Origin of poeciliid

< New Latin Poeciliidae, equivalent to Poecili(a) name of genus (< Greek poikilía striped, marked with various colors) + -idae -id2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019