Lateral stability

The stability about the longitudinal axis of an aircraft; the rolling stability, or the ability of an airplane to return to level flight due to a disturbance that causes one of the wings to drop.

Aviation Maintenance Technician Handbook — General, p. G-6

Also defined in 1 more source

The stability about the longitudinal axis of an aircraft. Rolling stability or the ability of an airplane to return to level flight due to a disturbance that causes one of the wings to drop.

Pilot's Handbook of Aeronautical Knowledge, p. G-17