copyleftglossary / COPYLEFT copyleft. Slang. A software license that allows users to modify or incorporate open-source code into larger pro-grams on the condition that the software containing the source code is publicly distributed without restrictions. 词条贡献者 译者成昱,毕业于世界顶级翻译学院,擅长翻译各种与集体诉讼相关的法律文件。