kerf

[kurf]
noun
1.
a cut or incision made by a saw or the like in a piece of wood.
2.
Mining. a deep cut a few inches high, used to undermine a portion of a coal or mineral seam.
3.
the act of cutting or carving.
verb (used with object)
4.
to make a kerf or kerfs in (a piece of wood, a coal seam, etc.).

Origin:
before 1000; Middle English kerf, kirf, Old English cyrf a cutting (cognate with Old Frisian kerf); akin to carve

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
kerf (kɜːf) [Click for IPA pronunciation guide]
 
n
the cut made by a saw, an axe, etc
 
[Old English cyrf a cutting; related to Old English ceorfan to carve]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
When the horizontal cut is complete, remove the bark from an area on both sides of the kerf.
First, a worker undermined a chunk of coal by chipping away at the foot of it with his pick, creating a gap called a kerf.
Diamond-wire cutting has been used traditionally with water injected into the kerf for cooling and dust control.
Use of wire saws to cut thinner, larger size wafers with less kerf loss.
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