deceleration
/dɪˌsɛləˈɹeɪʃən/ noun C2- The act or process of decelerating. · The rocket is now in deceleration.
- The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity), an acceleration having a negative numerical value. · The brakes produce a deceleration of 10 metres per second.
Plural decelerations
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