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Arkansas, Land of Opportunity, AR | a state in south central United States; one of the Confederate states during the American Civil War | |
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accounts receivable, AR, A/R | a creditor's accounts of money owed to him; normally arise from the sale of products or services | |
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argon, Ar, atomic number 18, E938 when used as a packaging gas | a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere | |
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are, ar | a unit of surface area equal to 100 square meters |