dyad
n. 二, 一对, 二元一位 [化] 二价元集(或基); 双; 对; 成对之物; 并矢
发音
词形变化
别名
释义与例句
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1.
A set of two elements treated as one; a pair.
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2.
Two persons in an ongoing relationship; a dyadic relationship.
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3.
The relationship or interaction itself in reference to a couple.
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4.
Any set of two different pitch classes.
音乐 -
5.
An element, atom, or radical having a valence of or combining power of two.
化学 -
6.
A chromosome structure, usually X- or V-shaped, consisting of two condensed sister chromatids joined by a centromere.
生物 -
7.
A secondary unit of organisation consisting of an aggregate of monads.
生物 -
8.
A tensor of order two and rank one.
数学
词汇关系
词源
From Ancient Greek δυάς (duás), δυάδ- (duád-) from δύο (dúo, “two”), from Proto-Indo-European *duwó, *duwéh₃ (*dwóh₁). The mathematics sense was coined by American scientist Josiah Willard Gibbs in 1884 in the second half of his book Elements of Vector Analysis.
来源：wiktionary