/ Dictionary / Index F fathogram: Meaning and Definition of Find definitions for: fath•o•gram Pronunciation: (fa'u-gram"), [key] — n. the record made by a sonic depth finder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Father Time fathom Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language