In a way pertaining to, befitting, or of a mother.

A machine or device that converts other energy forms into mechanical energy, or imparts motion. / (colloquial) A motor car, or automobile.

(biology) Relating to the ability to move. / Relating to motor cars. / (nautical) Propelled by an internal combustion engine (as opposed to a steam engine or turbine).

(dated) To make a journey by motor vehicle; to drive. / (transitive, aviation) To rotate a jet engine or turboprop using the engine's starter, without introducing fuel into the engine.

A woman who gives birth to a child not her own, with the intent to give that child up to at least one of the biological parents once it is born.

A motor that converts electrical energy into kinetic energy.

Alternative spelling of motorcar. / (rail transport, US) Synonym of railcar.

(mathematics, physics) oscillating motion (as of a pendulum) in which the acceleration of the oscillator has an equal magnitude but opposite direction to the displacement of it from the equilibrium position

at rest, stationary, immobile, not moving.

A detachable and pivotable propulsion unit fitted over the transom of a boat, comprising an engine that drives a propeller.