TIMER
- one that times (to determine the speed or duration of) [n TIMERS]
- one that times (to reckon the speed or duration of) [n -S]
- person or thing that measures and/or records time or rate of time
- device for indicating or measuring elapsed time
- device for controlling machinery, appliances, or the like, in a specified way at a predetermined time
- (in an internal-combustion engine) a set of points that cause the spark for igniting the required charge