English Dictionary: octad | by the DICT Development Group |
2 results for octad | |
From WordNet (r) 3.0 (2006) [wn]: | |
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. |