copyleft


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cop·y·left

 (kŏp′ē-lĕft′)
n.
A form of licensing that encourages the distribution of software at no charge for noncommercial uses.

[After copyright.]

cop′y·left′ed (-lĕf′tĭd) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

copyleft

(ˈkɒpɪˌlɛft)
n
(Law) law a form of licensing that imposes fewer restrictions on the use of a work than copyright
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

copyleft

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.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
References in periodicals archive ?
There are science journals on the Net publishing for free, knowledge repositories produced collaboratively like Wikipedia and the Open Directory Project, and a counterpart to copyright called "copyleft" which [sees] that new contributions building upon previously free ones stay free.
The web-based service will consist of two sections, Copyleft - which will feature material from unsigned artists, including free music - and Copyright, offering current hits and back catalogue numbers starting at 25p per track.
The web-based service will consist of two sections, Copyleft ( which will feature material from unsigned artists, including music downloadable for free ( and Copyright, offering current hits and back catalogue numbers starting at 25p per track.
com The web-based service will consist of two sections, Copyleft -- which will feature material from unsigned artists -- and Copyright, offering current hits and back catalogue numbers starting at 25p per track.
MM: What is copyleft? What is the reason for using the copyleft device rather than simply placing software in the public domain?
McBride also writes that GPL is called copyleft by its authors "to emphasize that it is the opposite of copyright." This statement is also contradicted by a reading of the principles of the GPL, which explain that copyleft is in fact based on copyright.
A word play on "copyright" the CopyLeft movement was born as a reaction to the increasing encroachment of intellectual property rights (IPRs) in the software industry.
All Wikipedia material, unless otherwise specified, is covered by the GNU Free Documentation License (GFDL), a "copyleft" license for free content.
HyperNietzsche is a research, publication and communication hypertext inspired by the Open Source philosophy and therefore encouraging the use of Copyleft This is constructed according to a dynamic contextualizing principle, and complements libraries, archives, publishers and other research projects on Nietzsche.
Employing Stallman's concept of "copyleft" (as opposed to "copyright"), Linux and its various hybrids are indeed owned by their creators and are licensed by users.