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Noun: retrofit  're-trow,fit
  1. A component or accessory added to something after it has been manufactured
     
  2. The act of adding a component or accessory to something that did not have it when it was manufactured
    "the court ordered a retrofit on all automobiles"
Verb: retrofit (retrofitted,retrofitting)  're-trow,fit
  1. Provide with parts, devices, or equipment not available or in use at the time of the original manufacture
    "The car companies retrofitted all the old models with new carburetors"
     
  2. Fit in or on an existing structure, such as an older house
    "The mansion was retrofitted with modern plumbing"
     
  3. Substitute new or modernized parts or equipment for older ones
    "The laboratory retrofitted to meet the safety codes"

Derived forms: retrofitting, retrofitted, retrofits

Type of: addition, component, constituent, element, furnish, instal, install, modernise [Brit], modernize, overhaul, provide, put in, render, set up, supply

Encyclopedia: Retrofit