circular error
Americannoun
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Horology. loss of isochronism in a pendulum moving through circular arcs of different sizes: sometimes avoided by causing the pendulum to move through cycloidal arcs.
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Military. error measured as the distance from the center of a target to the point of impact of a bomb or shell, or to the ground zero of an aerial burst.
Etymology
Origin of circular error
First recorded in 1880–85
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.
A strike is considered accurate if it lands within a "circular error probable," usually 10 meters around the object being targeted.
From Salon • Apr. 15, 2022
The system will double the accuracy, or halve the "circular error probability," of each of the 1,650 Minuteman warheads.
From Time Magazine Archive
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The balance escapement, even when adapted to a pendulum, necessitated a swing of some 20�, and hence the circular error, that is to say, the deviation of the path from a true cycloid, was considerable.
From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various
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.