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octad

n. 八個一組,八價元素

八個一組,八價元素

WordNet (r) 3.0 (2006) (WordNet)

octad
n 1: the cardinal number that is the sum of seven and one [synonym:
{eight}, {8}, {VIII}, {eighter}, {eighter from Decatur},
{octad}, {ogdoad}, {octonary}, {octet}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Octad \Oc"tad\, n. [Gr. ?, ?, the number eight.]
1. (Chem.) An atom or radical which has a valence of eight,
or is octavalent.
[1913 Webster]

2. A group of eight things.
[PJC]

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單詞	字典	翻譯
octad	查看　octad　在Google字典中的解釋	Google英翻中〔查看〕
octad	查看　octad　在Yahoo字典中的解釋	Yahoo英翻中〔查看〕

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