英语词汇“pentad”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pentad
释义	pentad /pen"tad/, n. 1. a period of five years. 2. a group of five. 3. the number five. 4. Chem. a pentavalent element or group. 5. Climatol. a period of five consecutive days. [1645-55; < Gk pentad- (s. of pentás) group of five. See PENT-, -AD¹]
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