- adjective (written as open source)describes a program for which the source code is freely available and which anyone is legally able to modify and improve
- (written as open source)computer program source code which is freely available. Open source helps outside programmers point out and provide fixes for bugs, suggest improvements, or customize an application for the needs of a given entity. Popular software with open source code include Linux and Mozilla.
Information & Library Science
- adjective relating to software or information that is free to be accessed, distributed, copied and used by any person without licensing or copyright restrictions