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single-blind

[sing-guh l-blahynd]
adjective
  1. of or relating to an experiment or clinical trial in which the researchers but not the subjects know which subjects are receiving the active medication or treatment and which are not: a technique for eliminating subjective bias, as the placebo effect, from the test results.
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Compare double-blind.

Origin of single-blind

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for single blind

single-blind

adjective
  1. of or relating to an experiment, esp one to discover people's reactions to certain commodities, drugs, etc, in which the experimenters but not the subjects know the particulars of the test items during the experimentCompare double-blind
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
single blind in Medicine

single blind

(sĭng′gəl)
n.
  1. A testing procedure in which the administrators do not tell the subjects if they are being given a test treatment or a control treatment, used in an effort to avoid accidental bias in the results.
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Related formssin′gle-blind′ adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.