double-blind Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “double-blind” in the English Dictionary

"double-blind" in British English

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double-blindadjective

uk   us   /ˌdʌb.l̩ˈblaɪnd/ specialized
A double-blind ​study or trial, ​especially in ​medicine, is one in which two ​groups of ​people are ​studied, for ​example with one ​group taking a new ​drug and one ​group taking something ​else, but neither the ​people in the ​studynor the ​scientist or ​doctorknows which ​person is in which ​group.
(Definition of double-blind from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"double-blind" in Business English

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double-blindadjective [usually before noun]

uk   us   (also double-blinded)
used to describe a ​test of a new ​product, especially a ​medicine, in which one ​group of ​people is given the new ​product, and another ​group is given something that contains none of the ​product. Neither those being ​tested nor those doing the ​testing know which ​group is which: double-blind study/trial This is a double-blind ​trial of 400 patients where 60% will get the ​drug and 40% will get a placebo.
(Definition of double-blind from the Cambridge Business English Dictionary © Cambridge University Press)
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