undercut

(noun) the material removed by a cut made underneath.

(noun) the tender meat of the loin muscle on each side of the vertebral column. Synonyms: tenderloin.

(noun) a notch cut in the trunk of tree in order to determine the direction of its fall.

(noun) (sports) a stroke that puts reverse spin on the ball. Synonyms: cut. Example: "Cuts do not bother a good tennis player."

(noun) a cut made underneath to remove material.

(verb) sell cheaper than one's competition. Synonyms: undersell.

(verb) cut away material from the underside of (an object) so as to leave an overhanging portion in relief.

(verb) cut away the underpart of. Example: "Undercut a vein of ore."

(verb) strike (the ball) in golf, tennis, or hockey obliquely downward so as to give a backspin or elevation to the shot.

(verb) cut obliquely into (a tree) below the main cut and on the side toward which the tree will fall.