pentad
a period of five years.
a group of five.
the number five.
Chemistry. a pentavalent element or group.
Climatology. a period of five consecutive days.
Origin of pentad
1Words Nearby pentad
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use pentad in a sentence
Nitrogen in the triad condition in the amines is far less poisonous than in the pentad condition.
Poisons: Their Effects and Detection | Alexander Wynter BlythThere is something to be said for this view, but on the whole the balance of the evidence is in favor of nitrogen being a pentad.
The structure of Aristotle's pentad for five act plays is useful as a framework for solving personal problems.
Sequential Problem Solving | Fredric LozoBut this oddness belongs to other numbers also (pentad, heptad, &c.).
Aristotle | George GroteFive, or the pentad, is everything; it stops the power of poisons, and is dreaded by evil spirits.
Three Thousand Years of Mental Healing | George Barton Cutten
British Dictionary definitions for pentad
/ (ˈpɛntæd) /
a group or series of five
the number or sum of five
a period of five years
chem a pentavalent element, atom, or radical
meteorol a period of five days
Origin of pentad
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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