SDL explained

SDL may refer to:

Computing

Specification and Description Language, defined by ITU
Simple DirectMedia Layer, a C programming language library
Services Description Language, a Microsoft fore-runner to Web Services Description Language
Scene Description Language, used by POV-Ray
Structure Definition Language of OpenVMS
Security Development Lifecycle, a software development process

Party of the Democratic Left (Slovakia) (SDĽ, 1990–2004)
Former Party of the Democratic Left (Czech Republic)
Party of the Democratic Left (2005), SDĽ, Slovakia
Scottish Defence League, a far-right anti-Muslim organisation
Social Democratic League of America, 1917–1920
Software Development Laboratories, the original name of what is today known as Oracle Corporation
Soqosoqo Duavata ni Lewenivanua, a political party in Fiji
Space Dynamics Laboratory, at Utah State University, US
SDL plc (formerly SDL International), a UK translation tool company

Saudi Digital Library
Shielded data link connector, an electrical signal connector
Sexual division of labour
Sound Digital - also known as SDL National, a digital radio multiplex in the United Kingdom
Standard Deontic Logic, an extension of classical propositional logic
Sundsvall-Härnösand Airport, by IATA airport code
Scottsdale Airport, by FAA airport code