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The Collaborative International Dictionary of English v.0.48 (gcide)

boson \bo"son\ (b[=o]"z[o^]n), n. [From S. N. Bose, an Indian
physicist.] (Physics)
A fundamental particle that obeys Bose-Einstein statistical
rules, but not the Pauli exclusion principle; the spin value
of a boson is always an integer. Examples of bosons are alpha
particles, photons, and those nuclei which have an even mass
number.
[PJC]


boson \bo"son\ (b[=o]"s'n), n.
See {Boatswain}. [Obs.] [Also spelled {bosun}.] --Dryden.
[1913 Webster]