Ar - Definition, Meaning & Synonyms | Vocabulary.com
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WEBMar 31, 2024 · Definitions of Ar. noun. a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere. synonyms: argon, atomic number 18. see more. Cite this entry. Style: MLA. "Ar." Vocabulary.com Dictionary, Vocabulary.com, https://www.vocabulary.com/dictionary/Ar. Accessed 22 Apr. 2024. …
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