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undercarriage

[ uhn-der-kar-ij ]
/ ˈʌn dərˌkær ɪdʒ /
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noun

the supporting framework underneath a vehicle, as an automobile or trailer; the structure to which the wheels, tracks, or the like are attached or fitted.
the portions of an aircraft that are below the body.

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Origin of undercarriage

First recorded in 1785–95; under- + carriage
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for undercarriage

undercarriage
/ (ˈʌndəˌkærɪdʒ) /

noun

Also called: landing gear the assembly of wheels, shock absorbers, struts, etc, that supports an aircraft on the ground and enables it to take off and land
the framework that supports the body of a vehicle, carriage, etc
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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