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WordReference Random House Unabridged Dictionary of American English © 2024nu•mer•a•tion (no̅o̅′mə rā′shən, nyo̅o̅′-),USA pronunciation n. - Mathematicsan act or instance of or the process or result of numbering or counting.
- Mathematicsthe process or a method of reckoning or calculating.
- Mathematicsthe act, art, or method of expressing or reading off numbers set down in numerals, esp. those written decimally.
- Latin numerātiōn- (stem of numerātiō) a counting out, paying, equivalent. to numerāt(us) numerate + -iōn- -ion
- late Middle English 1400–50
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