Longman Dictionary of Contemporary English homepage

Date: 1400-1500
Language: Latin
Origin: expulsio, from expulsus, past participle of expellere; EXPEL

expulsion

noun
     
ex‧pul‧sion [uncountable and countable]
1 the act of forcing someone to leave a place [↪ expel]
expulsion of
the expulsion of the protesters
expulsion from
his expulsion from the Soviet Union in 1964
2 the act of stopping someone from going to the school where they were studying or from being part of the organization where they worked:
The headmaster threatened the boys with expulsion.
expulsion of
the expulsion from the party of its former leader
3HBHT the act of forcing air, water, gas etc out of something

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