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There are 3 twenty-one-letter words beginning with ARITHMET

arithmetical␣hierarchy arithmetic␣hierarchies arithmetic␣progression

3 definitions found

arithmetical␣hierarchy — n. (Logic) A hierarchy which classifies the complexity of first-order…
arithmetic␣hierarchies — n. Plural of arithmetic hierarchy.
arithmetic␣progression — n. (Mathematical analysis) A sequence in which each term except…

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Scrabble in English: no word
French Wiktionary: 1 word
Spanish Wiktionary: no word
Italian Wiktionary: no word
German Wiktionary: no word
Portuguese Wiktionary: no word
Dutch Wiktionary: no word

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