/ Dictionary / Index T three-body problem: Meaning and Definition of Find definitions for: three'-bod'y prob"lem Pronunciation: (thrē'bod'ē), [key] — Astron., Astron.,Mech. the problem of calculating the motions of three bodies in space moving under the influence of only their mutual gravitational attraction. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. three-birds three-card monte Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language