Definition from Wiktionary, the free dictionary
remission (plural remissions)
- A lessening of amount due, as in either work or money or intensity of a thing.
- A pardon of a sin; the forgiveness of an offense.
- (medicine) An abatement or lessening of the manifestations of a disease.
- Her cancer was in remission.
- (law) Referring a case back to a lower (inferior) court of law.
Related terms 
See also 
- Genitive singular form of remissio.