Argon

Etymology
From ἀργόν:, neuter of ἀργός:, because of its inertness.

Noun

 * 1) a chemical element (symbol Ar) with an atomic number of 18.

Derived terms

 * argon-36
 * argon-38
 * argon-40
 * argon chloride fluoride
 * argon chloride hydride


 * argon fluoride hydride
 * argon fluorohydride
 * argon hydrofluoride
 * potassium-argon dating