ˌeksəˈflāshən noun
Etymology: Late Latin exsufflation-, exsufflatio, from exsufflatus (past participle of exsufflare to blow away, from Latin ex- ex- (I) + sufflare to inflate, blow upon) + Latin -ion-, -io -ion — more at sufflate
1. : the action of breathing forth or blowing ; especially : this action used as an exorcism in some rites of baptism
2. : forcible breathing or blowing out (as in clearing the respiratory tract) : forcible expiration