the act or process of decreasing; gradual reduction.
the amount lost by reduction.
Mathematics. a negative increment.
Physics. the ratio of amplitudes of a damped harmonic motion in the course of two successive oscillations.
Origin of decrement
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the act of decreasing; diminution
maths a negative increment
physics a measure of the damping of an oscillator, expressed by the ratio of the amplitude of a cycle to its amplitude after one period
(of spectra) a sequence of related spectrum lines decaying in intensity, e.g. Balmer decay
Word Origin for decrement
C17: from Latin dēcrēmentum, from dēcrescere to decrease
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
1620s, from Latin decrementum "diminution," from stem of decrescere (see decrease).
Online Etymology Dictionary, © 2010 Douglas Harper