Definition of dumb iron in English:

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dumb iron


A curved side piece of a vehicle chassis, to which the front springs are attached.
Example sentences
  • However, the hinges were on the inexpensive, household door variety welded to the dumb irons and radiator cowling.
  • The dumb irons on my car were a bit on the flimsy side, so reinforcement plates were welded prior to drilling.
  • While the dumb irons are in the same spot they are too wide and extend to far forward when fitted to a series chassis.

For editors and proofreaders

Syllabification: dumb i·ron

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