What is startermoter?

Answer 1

A starter moter is a high-torque electric motor for turning the gear on the engine flywheel. The modern starter motor is either a permanent-magnet or a Series-parallel wound Direct current electric moter with a solenoid switch (similar to a relay) mounted on it.

Answer 2

It seems like there may have been a typo in your question. If you meant "starter motor," it is an electric motor responsible for starting an internal combustion engine. It engages with the engine's flywheel to turn the crankshaft and start the engine.