Definition of timers:
(n) :
A device used to measure amounts of time.
(n) :
Any electronic function that causes a device to be able to do something automatically after a preset amount of time.
(n) :
Agent noun of time: someone or something that times.
(n) :
A person who records the time elapsed in a sporting event.
(n) :
One who has done something a certain number of times.
(n) :
One characterized by a certain time or time frame, such as their work hours.