/ Dictionary / Index T two-body problem: Meaning and Definition of Find definitions for: two'-bod'y prob"lem Pronunciation: (t'bod'ē), [key] — Astron., Astron.,Mech. the problem of calculating the motions of two bodies in space moving solely under the influence of their mutual gravitational attraction. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. two bits two-by-four 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