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/ˈɑːɹɡɒn/ · noun
The chemical element (symbol Ar) with an atomic number of 18. The third most abundant gas in the Earth's atmosphere, it is a colourless, odourless, inert noble gas..
Use argon when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Argon means The chemical element (symbol Ar) with an atomic number of 18. The third most abundant gas in the Earth's atmosphere, it is a colourless, odourless, inert noble gas..
Common synonyms include E938 when used as a packaging gas, atomic number 18, ar.
The opposite depends on the specific sense.
Use argon where its definition matches the intended context.
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