the algebraic sum of the moments about the neutral axis of any cross section of a beam.
Origin of bending moment
First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the algebraic sum of all the moments to one side of a cross-section of a beam or other structural support
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