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moment of inertia

American  

noun

Physics.

  1. the sum of the products of the mass and the square of the perpendicular distance to the axis of rotation of each particle in a body rotating about an axis.

moment of inertia British  

noun

  1.  I.  the tendency of a body to resist angular acceleration, expressed as the sum of the products of the mass of each particle in the body and the square of its perpendicular distance from the axis of rotation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
moment of inertia Scientific  
/ mō′mənt /

  1. A measure of a body's resistance to angular acceleration, equal to the product of the mass of the body and the square of its distance from the axis of rotation.

  2. See also angular momentum torque

Etymology

Origin of moment of inertia

First recorded in 1820–30

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.