Definition of "retrofitted" [retrofitted]

• Simple past tense and past participle of retrofit. (verb)
• Fitted or installed at a later date (adjective)

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• "Next up: Millennium Park's Crown Fountain retrofitted into blazing Prozac towers by CDC-licenced landscape architects."
• "He has also outfitted (one almost wants to say "retrofitted") a Fender Stratocaster guitar, making it appear that the pick guard has been peeled away to reveal the guts — all clockwork gears."
• "In a phone call with CNET earlier this week, Matt Tullis, who is Dolby's director of marketing, said Axon will be able to be "retrofitted" into older games through a software update, though he expects most developers to simply build it into their upcoming titles."