Meaning of unified field theory

u'nified field' the"ory

Pronunciation: [key]
— Physics. Physics.
  1. See
  2. any field theory, esp. Einstein's, that attempts to combine the gravitational and electromagnetic fields in a single mathematical framework, thus extending the general theory of relativity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.