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WordReference Random House Learner's Dictionary of American English © 2024com•pres•sion /kəmˈprɛʃən/USA pronunciation n. [uncountable]- the act of compressing or the state of being compressed.
See -press-. WordReference Random House Unabridged Dictionary of American English © 2024com•pres•sion (kəm presh′ən),USA pronunciation n. - the act of compressing.
- the state of being compressed.
- the effect, result, or consequence of being compressed.
- Automotive(in internal-combustion engines) the reduction in volume and increase of pressure of the air or combustible mixture in the cylinder prior to ignition, produced by the motion of the piston toward the cylinder head after intake.
- Computingreduction of the size of computer data by efficient storage.
Also, com•pres•sure (kəm presh′ər)USA pronunciation (for defs. 1, 2). - Latin compressiōn- (stem of compressiō), equivalent. to compress(us) past participle of comprimere to press together (see com-, press1) + -iōn- -ion
- Anglo-French)
- Middle English (1350–1400
+ n. - Computingreduction of the size of computer data by efficient storage.
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