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Showing results for undercarriage. Search instead for under-carriage.
Synonyms

undercarriage

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

noun

  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.

undercarriage British  
/ ˈʌndəˌkærɪdʒ /

noun

  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

"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

Etymology

Origin of undercarriage

First recorded in 1785–95; under- + carriage

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Two crew members and one passenger were onboard, but were not seriously injured when the main undercarriage collapsed on touch down.

From BBC • Aug. 6, 2025

If you decide to use composite decking on a treated lumber undercarriage, read the installation instructions.

From Seattle Times • Apr. 30, 2024

This, of course, doesn’t really matter to those of us in trucks — so long as the e-scooter doesn’t damage the undercarriage of the truck.

From Washington Times • Nov. 20, 2023

Their search turned up an AirTag that was attached to the undercarriage, behind the rear passenger wheel, the report said.

From Los Angeles Times • Oct. 17, 2023

I removed two clamps on the undercarriage and it dropped right out.

From "The Martian" by Andy Weir

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.