decelerate

de·cel·er·ate

verb \(ˈ)dē-ˈsel-ə-ˌrāt\

de·cel·er·at·edde·cel·er·at·ing

Definition of DECELERATE

transitive verb

: to reduce the speed of : slow down

intransitive verb

: to move at decreasing speed

—de·cel·er·a·tion \(ˌ)dē-ˌsel-ə-ˈrā-shən\ noun