Wiktionary
argon fluorohydride
n. (context inorganic compound English) The unstable compound, HArF, formed by reacting argon with hydrogen fluoride
Wikipedia
Argon fluorohydride
Argon fluorohydride (systematically named fluoridohydridoargon) or argon hydrofluoride is an inorganic compound with the chemical formula HArF (also written ArHF). It is a compound of the chemical element argon.
Usage examples of "argon fluorohydride".
Now that the Finns have succeeded in making argon fluorohydride, there's only two of the noble gases left to crack -- neon and helium.