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   com·pres·sion

   /kəmˈpreSH(ə)n/

   noun

   • 1. 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.

   Word Origin late Middle English: via Old French from Latin compressio(n-), from comprimere ‘press together’ (see compress).

   Derivatives

   • 1. compressional adjective

   Scrabble Points: 17

   • C

     3

   • O

     1

   • M

     3

   • P

     3

   • R

     1

   • E

     1

   • S

     1

   • S

     1

   • I

     1

   • O

     1

   • N

     1

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