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See more synonyms for undercarriage on Thesaurus.com
  1. 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.
  2. 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. 2018

Related Words for undercarriage

frame, undercarriage, body, case, skeleton, basic, core, no-frills

Examples from the Web for undercarriage

Historical Examples of undercarriage

  • Allan jumped for it, his fingers caught and clung to the undercarriage.

    When the Sleepers Woke

    Arthur Leo Zagat

  • Now, coming around the wing, I saw that there was no undercarriage.

    The Night of the Long Knives

    Fritz Reuter Leiber

  • The propeller is gone, and maybe the undercarriage is damaged some.

    The Flying Reporter

    Lewis E. (Lewis Edwin) Theiss

  • I busted a wing and wiped the undercarriage right off, and didn't get a scratch.

    Dave Dawson at Dunkirk

    Robert Sydney Bowen

  • It will then be said to be an "undercarriage bracing lift wire."

British Dictionary definitions for undercarriage


  1. 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
  2. the framework that supports the body of a vehicle, carriage, etc
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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

Word Origin and History for undercarriage


1794, from under + carriage. Meaning "landing gear of an aircraft" is recorded from 1911.

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Online Etymology Dictionary, © 2010 Douglas Harper