/ rɪˈmɪʃn; NAmE / noun [ U , C ]
1.
a period during which a serious illness improves for a time and the patient seems to get better :
The patient has been in remission for the past six months.
The symptoms reappeared after only a short remission.
2.
( BrE ) a reduction in the amount of time sb spends in prison, especially because they have behaved well
3.
( formal ) an act of reducing or cancelling the amount of money that sb has to pay :
New businesses may qualify for tax remission.
There is a partial remission of fees for overseas students.
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WORD ORIGIN
Middle English : from Old French , or from Latin remissio(n-) , from remittere send back, restore, from re- back + mittere send.