Definition of captcha in English:

Share this entry

captcha

Pronunciation: /ˈkaptʃə/
(also CAPTCHA)

noun

A computer program or system intended to distinguish human from machine input, typically as a way of thwarting spam and automated extraction of data from websites.
Example sentences
  • The spammers are thinking up ever more ingenious ways to break the captchas.
  • Every time you edit a page, you have to pass a captcha.
  • I guess the spammers tools are too simplistic to even attempt to break the captcha.

Origin

Early 21st century: acronym from Completely Automated Public Turing test to tell Computers and Humans Apart.

For editors and proofreaders

Line breaks: cap¦tcha

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.