Pronunciation: (an"tē-nOO-trē'nō, -nyOO-, an"tī-), [key]
—pl. -nos. Physics.
the antiparticle of a neutrino, distinguished from the neutrino by having clockwise rather than counterclockwise spin when observing in the direction of motion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.