User:Clipdude~enwiktionary/sandbox

I guess this is my sandbox.

Etymology
Acronym for "completely automated public Turing test to tell computers and humans apart."

Noun

 * 1) a system which uses publicly described algorithms to create a computer-generated item (such as an image or audio file) containing data thought to be easy for a human but difficult for a computer to read is sent over a network for the purpose of determining if a respondant is a human or a bot.
 * 2) an item generated by such a system

External link

 * Wikipedia article on captchas