What is the definition of
noble_gas
1.
[ noun ]
(chemistry) any of the chemically inert gaseous elements of the helium group in the periodic table
Synonyms:
argonon
inert_gas
Related terms:
gas
chemical_element
helium
argon
xenon
neon
radon
krypton
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Similar spelling:
Nobles
noblesse
noble_cane