CAPTCHA

or ��·�ٳ��

[ kap-chuh ]

Phonetic (Standard)IPA

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.

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Word History and Origins

Origin of CAPTCHA¹

First recorded in 2000–05; C(ompletely) A(utomated) P(ublic) T(uring) (Test to Tell) C(omputers and) H(umans) A(part); inspired by capture ( def )

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Example Sentences

Examples have not been reviewed.

That’s great, and I want that, but sometimes I want entertainment, style and originality too, and all of those things exist in this exciting, economical tale of a woman who can’t get past a CAPTCHA.

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In the short term, Tools for Humanity plans to generate revenue by offering its iris-based system as an alternative to security technologies like CAPTCHA, the photographic test that is used to sort humans from spam accounts.

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The testers found that the system could potentially hire a human to defeat an online Captcha test, lying that it was a person with a visual impairment.

From

Researchers recently showed that one system was able to hire a human online to defeat a Captcha test.

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The group found that the system was able to hire a human online to defeat a Captcha test.

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captan caption

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