/ Dictionary / Index U underbody: Meaning and Definition of Find definitions for: un•der•bod•y Pronunciation: (un'dur-bod"ē), [key] — pl. -bod•ies. the bottom or underneath part, as of a mechanism or animal: the underbody of a tank. the portion of a hull that is normally underwater. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: underbody (Thesaurus) underbodice underboss Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language