undercuts

n.

the material removed by a cut made underneath

the tender meat of the loin muscle on each side of the vertebral column

同义词：tenderloin

a notch cut in the trunk of tree in order to determine the direction of its fall

(sports) a stroke that puts reverse spin on the ball

同义词：cut

a cut made underneath to remove material

Molding apparatus and method of forming undercuts
The effect of mechanical undercuts on the strength of composite repair
Effect of material bulk and undercuts on the accuracy of impression materials
Retention of amalgam restorations: undercuts versus bonding
New Crater Age Undercuts Killer Comets
Cavernous undercuts appearing in reactive ion etched submicron-wide deep trenches
The significance of weld toe undercuts in the fatigue of steel plate T-joints
Prevention--how misuse of a concept undercuts its worth.
Cortical undercuts in the rat produce asymmetrical behavioral response without altering catecholamine concentrations.
Artificial undercuts for partial denture clasps. A technique using composite filling materials.