01 n. An atom whose valence is six, and which can be theoretically combined with, substituted for, or replaced by, six monad atoms or radicals; a…
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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.(chem.)