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dyad 音標拼音: [d'ɑɪ,æd] n. 二數,一對,二元一位 二數,一對,二元一位 dyad 二價元素 dyad n 1: two items of the same kind [synonym: {couple}, {pair}, {twosome}, {twain}, {brace}, {span}, {yoke}, {couplet}, {distich}, {duo}, {duet}, {dyad}, {duad}] Dyad \Dy"ad\, n. [L. dyas, dyadis, the number two. Gr. ?: cf. F. dyade. See two, and cf. {Duad}.] 1. Two units treated as one; a couple; a pair. [1913 Webster] 2. (Chem.) An element, atom, or radical having a valence or combining power of two. [1913 Webster] Dyad \Dy"ad\, a. (Chem.) Having a valence or combining power of two; capable of being substituted for, combined with, or replaced by, two atoms of hydrogen; as, oxygen and calcium are dyad elements. See {Valence}. [1913 Webster] 21 Moby Thesaurus words for "dyad":
both, brace, couple, couplet, distich, double harness, doublet, duad, duet, duo, match, mates, pair, set of two, span, team, the two, twain, two, twosome, yoke |
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