Runout

noun
1.
Machinery.

the gradual termination of a groove on the body of an object not ending there, as the upper termination of a flute in a twist drill.
Also called back clearance. a space in a depressed area of an object into which a machine tool or grinding wheel may safely enter at the end of a pass or operation.

2.
the merging of a curved surface into another surface.
3.
an act or instance of running away so as to evade, abandon, or avoid something.
4.
a person who runs away so as to avoid payment or duty.
5.
an act or instance of expiring or becoming depleted:
the runout of a union contract; a runout in office supplies.
6.
uneven wear on the outer edges of a tire or on the rim of a wheel.
noun, Manège.
1.
the act of evading a jump or jumping outside of the limiting markers.
run-out