REMISSIONn (lat. remittere): In spectrosopy, the term "remission" refers to the reflection or scatter of light by a material. Similar to the word "reemission", it means the light which is scattered backward from a material, as opposed to that which is "transmitted" though the material. The word "reemission" connotes no such directional character. Based on the origins of the words, "emit" means "to send out or away"; "reemit" means "to send out again"; "transmit" means "to send across or through"; and "remit" means "to send back".
In Catholic theology, an indulgence is the remission granted by the Church of the temporal punishment due to sins already forgiven by God.
This was not true, rather the stated length of time actually indicated that the indulgence was equal to the amount of remission the individual would have earned by performing a canonical penance for that period of time.
There are some Protestant traditions which might seem similar to the Catholic practice of indulgences however, such as many televangelists who tell their viewers that their donations to the organization will "multiply" after they have donated to the network or other church sponsored project.