octad


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oc·tad

(ok'tad),
1. Synonym(s): octavalent
2. An octavalent element or radical.
[L. octo, eight]

octad

the eight ascospores contained in a fungal ASCUS.
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References in periodicals archive ?
25) For instance, as noted by Zieseniss (1939:109-10), the Bhuvanakosa describes the octad of Lokapalas in terms that apparently identify them as manifestations of Siva himself.
Thus, writers after Gregory could draw on three traditions to attack avarice: "the Deadly Sins; the octad of Capital Vices; and the Gregorian heptad, in effect a synthesis of both" (106).
In addition, as Allen Forte suggests, octatonically aware composers frequently seem to have regarded seven pitch classes of the collection as 'surrogate' for the full octad.
As pointed out at the beginning of this article, Tonnet's identifications of the eight deities do not conform to any known octad of Brahmanic or Saiva divinities, nor to any specific iconographic master plan.