XML

Stands for "Extensible Markup Language." (Yes, technically it should be EML). It is a web development format for defining specialized markup languages which can be used to transmit data that is formatted for a specific purpose. Get all that? Basically, XML is related to the hyper-text markup language (HTML), but it isn't really a markup language. It's more of a meta-language, which is a language used to create other specialized languages. Though XML is a rather new concept, it has already gained a lot of support from web developers. Don't be surprised if you see XML replacing HTML in the future.