| Library / English Dictionary |
DECELERATION
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The act of decelerating; decreasing the speed
Example:
he initiated deceleration by braking
Classified under:
Nouns denoting acts or actions
Hypernyms ("deceleration" is a kind of...):
hurrying; speed; speeding (changing location rapidly)
Antonym:
acceleration (the act of accelerating; increasing the speed)
Sense 2
Meaning:
A decrease in rate of change
Example:
the deceleration of the arms race
Synonyms:
deceleration; retardation; slowing
Classified under:
Nouns denoting attributes of people and objects
Hypernyms ("deceleration" is a kind of...):
alteration; change; modification (an event that occurs when something passes from one state or phase to another)
Antonym:
acceleration (an increase in rate of change)
Derivation:
decelerate (reduce the speed of)
decelerate (lose velocity; move more slowly)
Sense 3
Meaning:
(physics) a rate of decrease in velocity
Classified under:
Nouns denoting time and temporal relations
Hypernyms ("deceleration" is a kind of...):
rate (a magnitude or frequency relative to a time unit)
Domain category:
natural philosophy; physics (the science of matter and energy and their interactions)
Antonym:
acceleration ((physics) a rate of increase of velocity)
