[ kap-chuh ]
/ ˈkæp tʃə /
noun Digital Technology.
an online test designed so that humans but not computers are able to pass it, used as a security measure and usually involving a visual-perception task: Site visitors must solve the “distorted text” CAPTCHA before posting comments.
a computer program that generates such tests.
What Are CAPTCHAs?Wherever we go on the internet, we encounter CAPTCHAs, those twisted words that block or enable entries on websites. But, what does CAPTCHA mean?
Origin of CAPTCHA
2000–05; C(ompletely) A(utomated) P(ublic) T(uring) (Test to Tell) C(omputers and) H(umans) A(part)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for captcha
Called "captcha," it's essentially a test that's easy for a human to complete, but difficult or impossible for a computer to do.