argon Meaning, Definition & Usage
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noun a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
Ar; atomic number 18.
WordNet
Ar"gon noun
Etymology
Gr. inactive.Definitions
(Chem.) A substance regarded as an element, contained in the atmosphere and remarkable for its chemical inertness. Rayleigh and Ramsay.
