Definition of decelerate
- decelerate a car
- decelerate growth
- decelerate soil erosion
she decelerated the car as we entered the school zone
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decelerate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 1899See Words from the same year
: to move slower : to lose speed
: to cause (something) to happen more slowly
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