decelerate
[ dee-sel-uh-reyt ]
verb (used with object),de·cel·er·at·ed, de·cel·er·at·ing.
to decrease the velocity of: He decelerates the bobsled when he nears a curve.
to slow the rate of increase of: efforts to decelerate inflation.
verb (used without object),de·cel·er·at·ed, de·cel·er·at·ing.
to slow down: The plane decelerated just before landing.
Origin of decelerate
1First recorded in 1895–1900; de- + (ac)celerate
- Also de·ac·cel·er·ate [dee-ak-sel-uh-reyt] /ˌdi ækˈsɛl əˌreɪt/ .
Other words from decelerate
- de·cel·er·a·tion [dee-sel-uh-rey-shuhn], /diˌsɛl əˈreɪ ʃən/, noun
- de·cel·er·a·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for decelerate
decelerate
/ (diːˈsɛləˌreɪt) /
verb
to slow down or cause to slow down
Origin of decelerate
1C19: from de- + accelerate
Derived forms of decelerate
- deceleration, noun
- decelerator, noun
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
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