英语词汇“heptad”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	heptad
释义	heptad [ hep-tad ] / ˈhɛp tæd / SEE SYNONYMS FOR heptad ON THESAURUS.COM noun the number seven. a group of seven. Chemistry. an element, atom, or group having a valence of seven. Origin of heptad First recorded in 1650–60, heptad is from the Greek word heptad- (stem of heptás). See hepta-, -ad¹ Words nearby heptad hepped, Hepplewhite, hepta-, heptachlor, heptachord, heptad, heptadecanoic acid, heptagon, heptagonal, heptahedron, heptahydrate Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for heptad But this oddness belongs to other numbers also (pentad, heptad, &c.). Aristotle\|George Grote Heptad, a term in chemistry to denote an atom that is the equivalent of seven atoms of hydrogen, from hepta, seven. The Nuttall Encyclopaedia\|Edited by Rev. James Wood British Dictionary definitions for heptad heptad / (ˈhɛptæd) / noun a group or series of seven the number or sum of seven an atom or element with a valency of seven Word Origin for heptad C17: from Greek heptas seven Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to heptad hebdomad, septenary, septuplicate
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