Underframe

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The supporting structure of a piece of furniture, a vehicle, etc.

    "The main fuel tank is slung from the underframe midway between the two bogies, and its capacity of 420 gal. supplies both the main engine and the train heating boiler."

  2. 2
    the internal supporting structure that gives an artifact its shape wordnet

Synonyms

All synonyms
backingbearingbushingchassisframemount

Example

More examples

"The main fuel tank is slung from the underframe midway between the two bogies, and its capacity of 420 gal. supplies both the main engine and the train heating boiler."

Etymology

From under- + frame.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.