v.
Pronunciation: ( ˌ )d ē - ' se-l ə - ˌ r ā t
Function: verb
Inflected Form: -at · ed ; -at · ing
Etymology: de- + a ccelerate
Date: 1899
transitive verb
1 : to reduce the speed of : slow down < decelerate a car>
2 : to decrease the rate of progress of < decelerate growth> < decelerate soil erosion>
intransitive verb : to move at decreasing speed
– de · cel · er · a · tion \ ( ˌ )d ē - ˌ se-l ə - ' r ā -sh ə n \ noun
– de · cel · er · a · tor \ ( ˌ )d ē - ' se-l ə -r ā -t ə r \ noun