Search Result for "proton": 
Wordnet 3.0

NOUN (1)

1. a stable particle with positive charge equal to the negative charge of an electron;


WordNet (r) 3.0 (2006):

proton n 1: a stable particle with positive charge equal to the negative charge of an electron
Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "proton": Kern, NMR, alpha particle, antibaryon, antilepton, antimeson, atom, atomic nucleus, atomic particle, baryon, beta particle, electron, elementary particle, ion, lepton, meson, molecule, monad, neutron, nuclear force, nuclear magnetic resonance, nuclear particle, nuclear resonance, nucleon, nucleosynthesis, nucleus, photon, quark, strangeness, strong interaction, triton, valence electron
The Free On-line Dictionary of Computing (18 March 2015):

PROTON 1. A home computer made by Acorn Computers under a contract won from the BBC in April 1981. [Details?] 2. Something to do with Microsoft SoftLib? (1994-11-28)