Centripetal force

The force in curvilinear motion acting toward the axis of rotation. For instance, when pulling out of a dive, it is the force that the seat exerts on the pilot to offset the centrifugal force. adjacent side

Aviation Maintenance Technician Handbook — General, p. G-3

Also defined in 2 more sources

The force that attracts a body toward its axis of rotation. It is opposite centrifugal force.

Helicopter Flying Handbook, p. G-2

A center-seeking force directed inward toward the center of rotation created by the horizontal component of lift in turning flight.

Pilot's Handbook of Aeronautical Knowledge, p. G-6