- a pitcher brought into a game to replace another pitcher, often in a critical situation.
- a pitcher regularly so used, as opposed to one who regularly starts games.
Origin of relief pitcher
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- baseball a pitcher who replaces a side's main pitcher during a gameAlso called: reliever