Definition of bolt-on in English:


Syllabification: bolt-on


(Of an extra part of a machine) able to be fastened on with a bolt or catch.
More example sentences
  • The upscale LX trim level adds color-keyed bodyside molding, bolt-on wheel covers, a passenger-side vanity mirror, a cargo cover for the wagon, and upgraded upholstery.
  • The bolt-on stereo speakers are surprisingly good.
  • The new car also has bolt-on end structures to reduce both the time and cost of crash repair.


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An extra part that can be fastened onto a machine with a bolt or catch.
More example sentences
  • This Beetle's body features a ton of new trim and factory-fresh bolt-ons.
  • Built off a 1967 Pontiac GTO Convertible, it featured genuinely interesting bodywork and some wild engine bolt-ons.
  • Included with the sale is the car's original owner's manual and some detailed component manuals for the aftermarket bolt-ons.

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Pronunciation: ˈbōɡəl
a phantom or goblin