heat*er
What Is The Definition Of Heater In Baseball?
1. The term heater is another name for a high velocity fastball. This nickname is to help describe a pitch that is “coming in hot” or “on fire” hence calling it a heat.
Example Of How Heater Is Used In Commentary
1. Johnson rears back and throws the old-fashioned heater right by the batter to strikeout the side.
Also Seen As:
1. Fastball
Sports The Term Is Used
1. Baseball
2. Softball