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1. A knob, knot, or other small protuberance.
2. One of a series of small ridges or grooves on the surface or edge of a metal object, such as a thumbscrew, to aid in gripping.
tr.v. knurled, knurl·ing, knurls
To provide with knurls; mill.

[ Probably diminutive of knur.]

knurled (nûrld) adj.
knurl′y adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


adj, knurlier or knurliest
a rare word for gnarled
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈnɜr li)

adj. knurl•i•er, knurl•i•est.
having knurls or knots; gnarled.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
On the western shore, dark green spruce reflect their knurly forms onto the smooth open water.
THE MORNING LIGHT WAS still dim in western Georgia when I spotted the silhouette of a turkey roosting in a knurly oak tree.