copyleft(redirected from Viral copyright)
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A form of licensing that encourages the distribution of software at no charge for noncommercial uses.
cop′y·left′ed (-lĕf′tĭd) adj.
(Law) law a form of licensing that imposes fewer restrictions on the use of a work than copyright
A distribution agreement that allows everybody who receives a copy of the work in question to freely distribute or adapt it on the condition that they do not claim copyright on it for themselves.