Meaning of two-body problem

two'-bod'y prob"lem

Pronunciation: (t'bod'ē), [key]
— Astron., Astron.,Mech.
  1. 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.