argon
PubChem Notes:
Argon Argon. A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used.
Ar - definition from Biology-Online.org
[symbol for argon.
MediLexicon argon - Medical Dictionary Definition for Term 'argon'
[1. A gaseous element, atomic no. 18, atomic wt. 39.948, present in the dry atmosphere in the proportion of about 0.94%; one of the noble gases.
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