Hypertext Webster Gateway: "ozone"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ozone \O"zone\, n. [Gr. 'o`zwn smelling, p. pr. of 'o`zein to
smell. See {Odor}.] (Chem.)
A colorless gaseous substance (O?) obtained (as by the silent
discharge of electricity in oxygen) as an allotropic form of
oxygen, containing three atoms in the molecule. It is a
streng oxidizer, and probably exists in the air, though by he
ordinary tests it is liable to be confused with certain other
substances, as hydrogen dioxide, or certain oxides of
nitrogen. It derives its name from its peculiar odor, which
resembles that of weak chlorine.
From WordNet (r) 1.7 (wn)
ozone
n : a colorless gas (O3) soluble in alkalis and cold water; a
strong oxidizing agent; can be produced by electric
discharge in oxygen or by the action of ultraviolet
radiation on oxygen in the stratosphere (where it acts as
a screen for ultraviolet radiation)
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