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A septivalent chemical element or radical.
References in periodicals archive ?
The factors influencing higher genetic diversity at msp-3[alpha] could be: (i) inter-allelic recombination (14); and (ii) presence of polymorphism prone region such as alanine rich heptad repeats.
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).
Vohu Manah is the most important of the Amesha Spentas, ranking only after Ahura Mazda himself in the Zoroastrian divine heptad.