- any of the chemically inert gaseous elements of group 8A or 0 of the periodic table: helium, neon, argon, krypton, xenon, and radon.
- another name for inert gas (def. 1)
More Definitions
- BIO ORGANISM (noun) Definition, Meaning & Examples
- ALDOL (noun) Definition, Meaning & Examples
- RUN SOMEONE IN (noun) Definition, Meaning & Examples
- DEAD IN ONE'S TRACKS (noun) Definition, Meaning & Examples
- STOCK SADDLE (noun) Definition, Meaning & Examples
- WELL ADVISED (noun) Definition, Meaning & Examples