SEAT meaning
SEAT definition
1. A surface upon which another part rests or seats. Example: valve seat is matched surface upon which valve face rests. See valve seat .2. Minor wearing of the piston ring surface during initial use. Rings then fit or seat properly against the cylinder wall .
3. The cushions on which the driver and passengers rest. Also see bench seat , bucket seat , power seat , rumble seat , saddle , and split bench seat .
4. A metering control that is regulated by a needle . See needle and seat .