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	hep·tad (hĕptăd′) n. A group or series of seven. [Greek heptas, heptad-, the number seven, from hepta, seven; see sept in the Appendix of Indo-European roots.]
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