Twistypedia is a collection of terminology developed by twisty puzzle designers and enthusiasts at the Twisty Puzzles Forum.
Some definitions: http://twistypuzzles.com/forum/viewtopic.php?f=1&t=17894
Rules of Twistypedia
Please use Twistypedia only for twisty-puzzle design and mechanism terminology. Not for solving, algorithms, discussions, collecting, designers, individual puzzles, ...