[ tres-uhl ]
/ ˈtrɛs əl /
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Definition of trestle

a frame typically composed of a horizontal bar or beam rigidly joined or fitted at each end to the top of a transverse A-frame, used as a barrier, a transverse support for planking, etc.; horse.
Civil Engineering.
  1. one of a number of bents, having sloping sides of framework or piling, for supporting the deck or stringers of a bridge.
  2. a bridge made of these.
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Origin of trestle

1300–50; Middle English trestel<Middle French, by dissimilation from Old French trestre ≪ Latin trānstrum crossbeam
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How to use trestle in a sentence

British Dictionary definitions for trestle

/ (ˈtrɛsəl) /

a framework in the form of a horizontal member supported at each end by a pair of splayed legs, used to carry scaffold boards, a table top, etc
  1. a braced structural tower-like framework of timber, metal, or reinforced concrete that is used to support a bridge or ropeway
  2. a bridge constructed of such frameworks

Word Origin for trestle

C14: from Old French trestel, ultimately from Latin trānstrum transom
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