The American Heritage® Dictionary of the English Language, 4th Edition
n. A grand unified field theory that attempts to unify the fundamental forces by postulating a symmetry relating the known fermions to hypothetical bosons and the know bosons to hypothetical fermions.
n. A theory that attempts to unify the fundamental physical forces and which proposes a physical symmetry between bosons and fermions
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. (physics) a theory that tries to link the four fundamental forces
Word Usage
"And even if evidence of supersymmetry is found, the full explanation of the Higgs puzzle may well involve anthropic considerations that we talk about in our paper."