turnbuckle

[ turn-buhk-uh l ]
/ ˈtɜrnˌbʌk əl /

noun

a link or sleeve with a swivel at one end and an internal screw thread at the other, or with an internal screw thread at each end, used as a means of uniting or coupling, and of tightening, two parts, as the ends of two rods.

Origin of turnbuckle

First recorded in 1695–1705; turn + buckle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for turnbuckle

turnbuckle
/ (ˈtɜːnˌbʌkəl) /

noun

an open mechanical sleeve usually having a swivel at one end and a thread at the other to enable a threaded wire or rope to be tightened

Word Origin for turnbuckle

C19: from turn + buckle
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