/ Dictionary / Index F frost point: Meaning and Definition of Find definitions for: frost' point" Pronunciation: [key] the temperature of the air at which hoarfrost begins to form. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. frostline frost smoke Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language