Category:Hexad

Hex"ad, n. Etym: [L. hexas, hexadis, the number six, Gr. (chem.)

Defn: 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.