Definify.com
Webster 1913 Edition
Cut-off
Cut′-offˊ
(kŭt′ŏfˊ; 115)
, Noun.
1.
That which cuts off or shortens, as a nearer passage or road.
2.
(Mach.)
(a)
The valve gearing or mechanism by which steam is cut off from entering the cylinder of a steam engine after a definite point in a stroke, so as to allow the remainder of the stroke to be made by the expansive force of the steam already let in. See
Expansion gear
, under Expansion
. (b)
Any device for stopping or changing a current, as of grain or water in a spout.