| retrofit 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" |
| retrofit a component or accessory added to something after it has been manufactured |
| retrofit substitute new or modernized parts or equipment for older ones, "The laboratory retrofitted to meet the safety codes" |
| retrofit fit in or on an existing structure, such as an older house, "The mansion was retrofitted with modern plumbing" |
| retrofit provide with parts, devices, or equipment not available or in use at the time of the original manufacture, "They car companies retrofitted all the old models with new carburetors" |