pentad
Americannoun
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a period of five years.
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a group of five.
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the number five.
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Chemistry. a pentavalent element or group.
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Climatology. a period of five consecutive days.
noun
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a group or series of five
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the number or sum of five
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a period of five years
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chem a pentavalent element, atom, or radical
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meteorol a period of five days
Etymology
Origin of pentad
First recorded in 1645–55; from Greek pentad- (stem of pentás ) group of five; see origin at pent-, -ad 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In the pentad of 1923-27, U. S. investors paid $34,806,783,000 for 36,965 different issues of bonds and stocks.
From Time Magazine Archive
Colours may best be expressed by a heptad, the largest possible formula for things finite, as the pentad is the smallest possible form.
From Specimens of the Table Talk of Samuel Taylor Coleridge by Coleridge, Henry Nelson
Indeed, the heptad of things finite is in all cases reducible to the pentad.
From Specimens of the Table Talk of Samuel Taylor Coleridge by Coleridge, Henry Nelson
The Sâ@nkhya categories have each their individual difference, and there are no attributes belonging in common to each pentad on account of which the number twenty-five could be divided into five times five.
From The Vedanta-Sutras with the Commentary by Sankaracarya Sacred Books of the East, Volume 1 by Thibaut, George
Five, or the pentad, is everything; it stops the power of poisons, and is dreaded by evil spirits.
From Three Thousand Years of Mental Healing by Cutten, George Barton
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
