Deviating from circularity; changing the distance from a center.

A term used in connection with cylinder plugs having projections on the sides of the keyway that extend beyond the vertical centerline of the keyway.

adj. 1. of or pertaining to a keyway with one or more wards on each side projecting beyond the vertical center line of the keyway to hinder picking 2. of or pertaining to a key blank made to enter such a keyway