argonon

Noun

Meaning

any of the chemically inert gaseous elements of the helium group in the periodic table

Source: WordNet

inert gas noble gas

gas element chemical element

krypton xenon helium argon He ar

organon Noongar rangoon Nagorno

Burstall went furthest in saying that he will turn down commissions if he believes they could expose Argonon to too much risk. Source: Internet