argon

• POS: Noun
• HYPHEN: ar=gon

CIDE DICTIONARY

argon, n. [NL., fr. Gr. , neut. of inactive; priv. + work.].

 A colorless, odorless gas occurring in the air (of which it constitutes 0.93 per cent by volume), in volcanic gases, etc.; -- so named on account of its inertness by Rayleigh and Ramsay, who prepared and examined it in 1894-95. Symbol, A; at. wt., 39.9. Argon is condensible to a colorless liquid boiling at -186.1Webster 1913 Suppl.]

OXFORD DICTIONARY

argon, n. Chem. an inert gaseous element, of the noble gas group and forming almost 1% of the earth's atmosphere.

Usage

Symb.: Ar.

Etymology

Gk, neut. of argos idle f. a- not + ergon work