- (in automotive vehicles) a belt, driven by the crankshaft of an engine, that turns a fan for drawing cooling air through the radiator.
Origin of fan belt
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any belt that drives a fan, esp the belt that drives a cooling fan together with a dynamo or alternator in a car engine