A solenoid is a type of electromagnet formed by a coil of wire
Solenoid may also refer to:
Solenoid (engineering), an actuator which uses an electromagnet to convert electrical energy to mechanical energy Starter solenoid, part of an automobile ignition system; also called a starter relay Transmission solenoid Solenoidal vector field, a vector field in mathematics characterized as having zero divergence Solenoid (DNA) in genetics Solenoid (mathematics) Solenoid (meteorology) Solenoid (novel), a 2015 novel by Mircea Cărtărescu Solenoid valve Solenoid protein domain