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Definitions for: Pentad [n] the cardinal number that is the sum of four and one
Webster (1913) Definition: Pen"tad, n. [Gr. ?, ?, a body of five, fr. ? five.]
(Chem.)
Any element, atom, or radical, having a valence of five, or
which can be combined with, substituted for, or compared
with, five atoms of hydrogen or other monad; as, nitrogen is
a pentad in the ammonium compounds.
Pen"tad, a. (Chem.)
Having the valence of a pentad.
Synonyms: 5, cinque, fin, five, fivesome, Little Phoebe, Phoebe, quint, quintet, quintuplet, V
See Also: digit, figure
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