knurling
[nur-ling]
Origin of knurling
knurl
or nurl
[nurl]
- a small ridge or bead, especially one of a series, as on a button for decoration or on the edge of a thumbscrew to assist in obtaining a firm grip.
- a knur.
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- to make knurls or ridges on.
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Origin of knurl
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for knurling
Historical Examples
Concave knurls are sometimes used for knurling rounded edges on screw heads, etc.
Turning and BoringFranklin D. Jones
The two knurls are on opposite sides of the work so that the pressure of knurling is equalized.
Turning and BoringFranklin D. Jones
Another machine puts the knurling around—forming the lubricating grooves, and another groove.
Warren Commission (3 of 26): Hearings Vol. III (of 15)The President's Commission on the Assassination of President Kennedy
It is actually a knurling process, you can see the knurling marks.
Warren Commission (3 of 26): Hearings Vol. III (of 15)The President's Commission on the Assassination of President Kennedy
knurl
nurl
- to impress with a series of fine ridges or serrations
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- a small ridge, esp one of a series providing a rough surface that can be gripped
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Word Origin
C17: probably from knur
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for knurling
knurl
n.
"hard excrescence," c.1600, probably a diminutive of Middle English knor "knot" (c.1400), related to gnarl, from Proto-Germanic *knur- (cf. German knorren "a knotty excrescence"). Related: Knurly.
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Online Etymology Dictionary, © 2010 Douglas Harper