An Etymological Dictionary of Astronomy and Astrophysics

Any theory that attempts to describe all the forces of nature including gravity in a single mathematical formalism; e.g. → grand unified theory. → string theory.

Etymology (EN): → theory; every; M.E. every, everich; O.E. æfre ælc “ever each;” → thing.

Etymology (PE): Negaré, → theory; hamé, → all; ciz, → thing.