noble gas
noun/ˌnəʊbl ˈɡæs/
/ˌnəʊbl ˈɡæs/
(also inert gas, rare gas)
(chemistry)- any of a group of gases that do not react with other chemicals. Argon, helium, krypton and neon are noble gases.
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
noble gas