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A right-angled metal bracket that is used on the faceplate of a lathe to hold the pieces that are being worked.
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.
(Building) a steel structural plate, esp one in the shape of a right-angled triangle, used to connect structural members and stiffen frameworks
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014