trunnion
Use Trunnion in a sentence
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yən noun
1.
either of the two cylindrical projections on a cannon, one on each side for supporting the cannon on its carriage.
2.
any of various similar supports for machinery.
Origin:
1615–25; < French trognon trunk, stump, core (of fruit)
1615–25; < French trognon trunk, stump, core (of fruit)
Related forms
trun·nioned, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
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Link To trunnion
Collins
World English Dictionary
trunnion (ˈtrʌnjən) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | 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 |
| 2. | the structure supporting such a projection |
| [C17: from Old French trognon trunk] | |
| 'trunnioned | |
| —adj | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Trunnion
is always a great word to know.
So is quincunx. Does it mean:
| a fool or simpleton; ninny. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
Etymonline
Word Origin & History
trunnion
1625, "either of two round projections of a cannon," from Fr. trognon "core of fruit, stump, tree trunk," from M.Fr. troignon (14c.), probably, from L. truncus (see trunk).
Online Etymology Dictionary, © 2010 Douglas Harper
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Cite This Source
Example sentences
The bridge problem involves a crack in a huge steel axle, or trunnion, at the north end of the northbound lift span.
It is a simple trunnion with a concrete counterweight set underneath the tail end.
He described three types of bascule structures: trunnion, rolling lift and roller bearing.
Inspect swashplate trunnion bearings for wear and security.
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