Definiciones
1.VerbTo supply (a device, structure, etc.) with new components or parts that were not previously available or installed; to modernize."The bug was so bad that we had to retrofit our patch to the last three releases, as well as the newest release."
2.VerbTo supply (a device, structure, etc.) with new components or parts that were not previously available or installed; to modernize.
3.VerbTo add or substitute (new components or parts) that were not previously available for or installed in a device, structure, etc.
4.VerbSynonym of backport (“to retroactively supply a fix or feature to a previous version of a software product at the same time or after supplying it to the current version.”)."The bug was so bad that we had to retrofit our patch to the last three releases, as well as the newest release."
5.VerbTo give new characteristics or make alterations (to someone or something) to suit them to changed circumstances.
6.VerbTo supply a device, structure, etc., with new components or parts that were not previously available or installed.
7.NounAn act of supplying a device, structure, etc., with new components or parts that were not previously available or installed; a retrofitting.
8.NounA change made to a device, structure, etc., by introducing components or parts that were not previously available or installed.