Main Entry: ar·gon

Pronunciation: \ˈär-ˌgän\

Function: noun

Etymology: Greek, neuter of argos idle, lazy, from a- + ergon work; from its relative inertness — more at work

Date: 1894

: a colorless odorless inert gaseous element found in the air and in volcanic gases and used especially in welding, lasers, and electric bulbs — see element table