Hypertext Webster Gateway: "octad"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Octad \Oc"tad\, n. [Gr. ?, ?, the number eight.] (Chem.)
An atom or radical which has a valence of eight, or is
octavalent.
From WordNet (r) 1.7 (wn)
octad
n : the cardinal number that is the sum of seven and one [syn: {eight},
{8}, {VIII}, {eighter}, {eighter from Decatur}, {ogdoad},
{octonary}, {octet}]
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