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.
< Neo-Latin Poeciliidae,
equivalent to Poecili
) name of genus (< Greek poikilía
striped, marked with various colors) + -idae -id2