From Longman Dictionary of Contemporary Englishdeceleratede‧cel‧e‧rate /ˌdiːˈseləreɪt/ verb [intransitive] formal SLOWto go slower, especially in a vehicle SYN slow down OPP accelerate —deceleration /ˌdiːseləˈreɪʃən/ noun [uncountable] a deceleration in economic growth→ See Verb table
Examples from the Corpus
decelerate• Between the bow shock and the magnetopause the solar wind is greatly decelerated.• Alpha particles are just high-energy 4He nuclei; after decelerating and picking up electrons, they become atoms of 4He.• An underpowered helicopter will rapidly decelerate as soon as you apply any control input and the model will come to a dead stop-probably inverted.• Steeply, noses high, the whole flight rapidly decelerated for the landing.• I have an aggravating whine coming from my gearbox every time I decelerate in fourth gear.• Only four steps are required to decelerate the motor, as the load torque contributes to the decelerating torque.• Then, with a single powerful engine burn, the spacecraft can decelerate to a soft landing on the lunar surface.• Our flight continued to decelerate to about 70 knots. 