Z:gnu-www-ja-nonsoftware-copyleft--1c3e53-copyleft: /kop'ee-left/ =5Bplay/en

copyleft: /kop'ee-left/ [play on &lsquo;copyright&rsquo;] n. 1. The copyright notice (&lsquo;General Public License&rsquo;) carried by GNU EMACS and other Free Software Foundation software, granting reuse and reproduction rights to all comers (but see also General Public Virus). 2. By extension, any copyright notice intended to achieve similar aims.