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hexad n. 六,六個一組,六價原子 六,六個一組,六價原子 hexad n 1: the cardinal number that is the sum of five and one [synonym: {six}, {6}, {VI}, {sixer}, {sise}, {Captain Hicks}, {half a dozen}, {sextet}, {sestet}, {sextuplet}, {hexad}] Hexad \Hex"ad\, n. [L. hexas, hexadis, the number six, Gr. ?, ?,
fr. "e`x six.] (chem.) An atom whose valence is six, and which can be theoretically combined with, substituted for, or replaced by, six monad atoms or radicals; as, sulphur is a hexad in sulphuric acid. Also used as an adjective. [1913 Webster] |
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