single-blind

adjective

sin·​gle-blind ˈsiŋ-gəl-ˌblīnd How to pronounce single-blind (audio)
sometimes offensive
: of, relating to, or being an experimental procedure in which the experimenters but not the subjects know the makeup of the test and control groups during the actual course of the experiments see usage paragraph at blind entry 1 compare double-blind, open-label

Word History

First Known Use

1963, in the meaning defined above

Time Traveler
The first known use of single-blind was in 1963

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Cite this Entry

“Single-blind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/single-blind. Accessed 12 Nov. 2025.

Medical Definition

single-blind

adjective
sin·​gle-blind ˌsiŋ-gəl-ˈblīnd How to pronounce single-blind (audio)
sometimes offensive
: of, relating to, or being an experimental procedure in which the experimenters but not the subjects know the makeup of the test and control groups during the actual course of the experiments

Note: Figurative uses of blind, whether alone or as part of a longer word, compound, or idiom, are sometimes considered offensive when they associate negative characteristics (such as lack of knowledge or understanding) with blindness. Generally speaking, the more negative such a use is, the more likely it is to offend.

compare double-blind, open-label
Last Updated: - Definition revised
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