Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym CAPTCHA is...

CAPTCHA is

  • Completely Automatic Public Turing Test to Tell Computers and Humans Apart

CAPTCHA is also in:

Acronym Definition Searched: 03447 SAGA 66843 CTTB LCO MOA 08720 LVL PUS TAOR CWH RCN YM DDNS A64