/ Dictionary / Index P poeciliid: Meaning and Definition of Find definitions for: poe•cil•i•id Pronunciation: (pē-sil'ē-id), [key] — n. any small New World fish of the family Poeciliidae, of fresh or brackish tropical and temperate waters, including the mosquitofish, guppies, and mollies. —adj. belonging or pertaining to the family Poeciliidae. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: poeciliid (Thesaurus) Poe poem Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language