Word Study
alpha particle
CIDE DICTIONARY
alpha particle,
a particle emitted at high velocity from certain radioactive substances. It is identical to the helium nucleus, consisting of two protons and two neutrons. Rays of such particles are called alpha rays. [Webster 1913 Suppl.]
THESAURUS
alpha particle
Kern, NMR, antibaryon, antilepton, antimeson, atomic nucleus, atomic particle, aurora particle, baryon, beta particle, electron, elementary particle, heavy particle, lepton, meson, mesotron, neutron, nuclear force, nuclear magnetic resonance, nuclear particle, nuclear resonance, nucleon, nucleosynthesis, nucleus, photon, proton, radioactive particle, radion, solar particle, strangeness, strong interaction, triton, valence electronFor further exploring for "alpha particle" in Webster Dictionary Online