compression
Concise Oxford English Dictionary © 2008 Oxford University Press:
compression/kəmˈpreʃn/
▶noun the action of compressing or being compressed.
■ the reduction in volume (causing an increase in pressure) of the fuel mixture in an internal-combustion engine before ignition.
– derivatives
compressional adjective.
compressional adjective.
'compression' also found in these Oxford entries:
carotid
- carpal tunnel syndrome
- compression ratio
- compressive strength
- diesel
- four-stroke
- friction welding
- GIF
- haemostat
- hamza
- lossless
- lossy
- orogeny
- sciatica
- sinter
- sound wave
- strut
- tamponade

