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trunnion

[ truhn-yuhn ]
/ ˈtrʌn yən /
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noun
either of the two cylindrical projections on a cannon, one on each side for supporting the cannon on its carriage.
any of various similar supports for machinery.
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Origin of trunnion

First recorded in 1615–25, trunnion is from the French word trognon trunk, stump, core (of fruit)

OTHER WORDS FROM trunnion

trunnioned, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use trunnion in a sentence

British Dictionary definitions for trunnion

trunnion
/ (ˈtrʌnjən) /

noun
one of a pair of coaxial projections attached to opposite sides of a container, cannon, etc, to provide a support about which it can turn in a vertical
the structure supporting such a projection

Derived forms of trunnion

trunnioned, adjective

Word Origin for trunnion

C17: from Old French trognon trunk
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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