/ Dictionary / Index F factoid: Meaning and Definition of Find definitions for: fac•toid Pronunciation: (fak'toid), [key] — n. something fictitious or unsubstantiated that is presented as fact, devised esp. to gain publicity and accepted because of constant repetition. an insignificant fact. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: factoid (Thesaurus) fact of life factor Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language