- a group or series of seven
- the number or sum of seven
- an atom or element with a valency of seven
单词 | heptad |
释义 | WordReference Random House Unabridged Dictionary of American English © 2024 hep•tad (hep′tad),USA pronunciation n.
Collins Concise English Dictionary © HarperCollins Publishers:: heptad /ˈhɛptæd/ n
|
随便看 |
英语词典包含188688条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。