a chemical element that is a gas that does not produce a chemical reaction when mixed with other substances. Its symbol is Ar and it is sometimes used in electric lights.
Synonyms and related words
Gases
acetylene
ammonia
argon
Synonyms and related words
Chemical elements
actinium
alkali metal
aluminium
argon
noun uncountable chemistry
US /ˈɑrˌɡɑn/
DEFINITIONS1
1
a chemical element which is a gas that does not produce a chemical reaction when mixed with other substances. Its symbol is Ar and it is sometimes used in electric lights.