[kuh m-presh-uh n] /kəmˈprɛʃ ən/
the act of .
the state of being .
the effect, result, or consequence of being compressed.
(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.
Also called data compression. Computers. reduction of the storage space required for data by changing its format.
Also called compressure (kəmˈprɛʃə). the act of compressing or the condition of being compressed
an increase in pressure of the charge in an engine or compressor obtained by reducing its volume
c.1400, from Middle French compression (14c.), from Latin compressionem (nominative compressio) “a pressing together,” noun of action from past participle stem of comprimere (see compress (v.)). Related: Compressional. Compressional wave is attested from 1887.
compression com·pres·sion (kəm-prěsh’ən)
See data compression.
- Compression cyanosis
compression cyanosis n. Cyanosis accompanied by petechial hemorrhages of the head, neck, and upper chest, caused by severe or prolonged compression of the chest or abdomen.
- Compression-ignition engine
noun 1. a type of internal-combustion engine, such as a diesel, in which ignition occurs as a result of the rise in temperature caused by compression of the mixture in the cylinder
noun 1. a method of molding thermosetting plastic by closing a mold on it, forming the material by heat and pressure.
- Compression paralysis
compression paralysis n. Paralysis due to compression of a nerve, as by prolonged pressure.