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Woodruff key

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noun Machinery.

a key having the form of a nearly semicircular disk fitting into a recess in a shaft.

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Origin of Woodruff key

Apparently after the proper name
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for Woodruff key

Woodruff key
/ (ˈwʊdrʌf) /

noun engineering

a semicircular key restrained in a curved keyway in a shaft
C19: named after the Woodruff Manufacturing Co, in Hartford, Connecticut, who first manufactured it in 1892
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
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