An compound formed by the addition of the elements of hydrogen fluoride(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "fluorohydride" in a sentence
"For example, the creation of argon fluorohydride (HArF), a metastable compound of argon with fluorine and hydrogen, was reported by researchers at the University of Helsinki in 2000."
"And it does it because it's got a fuel cell with a replaceable fluorohydride [ph] pack."