Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A form of licensing that encourages the distribution of software at no charge for noncommercial uses.
Wiktionary
- adj. Allowing use, distribution, and modification on the condition that any redistributions or modifications also be licensed under the same condition and, in the case of computer software, are accompanied by source code
- n. A copyleft license.
- n. The act of licensing under a copyleft license.
- v. To license under a copyleft license.
Etymologies
- After copyright.
Examples
“The Copyleft Foundation, which initiates its course this coming month of October year 2006, issues a formal invitation to participate to all those interested in copyleft and who form a part of the chain of assessment of the arts, culture an science as well as individuals and associative companies.”
“The GPL is called a copyleft license, which is wordplay on copyright.”
“A concept in competition with the idea of copyleft is the "non-commercial" license, which attempts to restrict the use of a work for "commercial" purposes.”
“copyleft" - software licenses that not only allow copying, but require it.”
“It is radical because previous attempts have tried to build on the evident success of the GNU GPL by taking a kind of copyleft approach: using copyright to limit copyright.”
“Do you own the copyright, and if so would you be willing to give a general "copyleft" or other no-royalty license?”
“IP practitioners frequently complain about the academythe "copyleft" as they are found sic of saying.”
“This License is a kind of "copyleft," which means that derivative works of the document must themselves be free in the same sense.”
How To Think Like a Computer Scientist, Learning with Python
“This approach, known as "copyleft", as opposed to copyright, languished in obscurity until the internet made it easier for far-flung groups of developers to collaborate-which led to an explosion of open-source activity.”
“As a musician, and as an entrepreneur making my living selling equipment to studios and musicians, I obviously have a great deal to lose if the putative forces of "copyleft" somehow succeed in preventing music being paid for.”
Lists
‘copyleft’ hasn't been added to any lists yet.
nuxiy I can also see them both now May 15, 2009
seanahan I can see both of them here from a different computer, same Firefox, but using Linux this time. May 15, 2009
vanishedone How about ↄ? May 15, 2009
nuxiy Me neither May 15, 2009
seanahan I can't see it. May 15, 2009
vanishedone Can you see a reversed c here? → Ↄ
I got it from here, but I can't view it on my machine.
There's been some discussion about the possibility of adding the symbol here. May 11, 2009
Prolagus Does the copyleft symbol exist as a font? Is there any right-left equivalent of the upside-down tool whichbe linked to on upside-down? May 11, 2009
seanahan Often used to describe the GPL, the GNU Public License. Jan 8, 2008