- (Web) Initialism of Web Services Description Language (an XML-based language that provides a model for describing Web services.)
- „WSDL is often used in combination with SOAP and an XML Schema to provide Web services over the Internet. A client program connecting to a Web service can read the WSDL file to determine what operations are available on the server.“
- (dated) Initialism of Web Services Definition Language.
- WSDL is no more called Web Services Definition Language today.