from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of the elementary particles that mediate one of the four fundamental forces. The particles and their corresponding forces are the photon and the electromagnetic force, the graviton and the gravitational force, the intermediate vector boson and the weak interaction, and the gluon and the strong interaction.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a family of gauge bosons having a spin quantum number of one
Sorry, no etymologies found.