Meaning of COMPRESSION in English

COMPRESSION

[com.pres.sion] n (15c) 1 a: the act, process, or result of compressing b: the state of being compressed

2: the process of compressing the fuel mixture in a cylinder of an internal combustion engine (as in an automobile)

3: a much compressed fossil plant -- com.pres.sion.al adj

Merriam-Webster English vocab.      Английский словарь Merriam Webster.