double-blind
adjective
dou·ble-blind
ˌdə-bəl-ˈblīnd 
: of, relating to, or being an experimental procedure in which neither the subjects nor the experimenters know which subjects are in the test and control groups during the actual course of the experiments compare open-label, single-blind
Examples of double-blind in a Sentence
Recent Examples on the Web
Another ongoing double-blind, randomized clinical trial, called ADDRESS-LC, will test a different, more specific immunomodulator called bezisterim for neurocognitive long COVID.
—
The Washington Post, San Diego Union-Tribune, 27 May 2025
Experts have pushed back against this claim about vaccine testing, pointing to various double-blind studies for inoculations against MMR, polio and the flu, among others.
—Joseph Choi, The Hill, 8 May 2025
The encouraging results have laid the groundwork for the next phase: double-blind, randomized clinical trials — the gold standard for proving treatment efficacy.
—Jenny Lehmann, Discover Magazine, 1 May 2025
The findings of the double-blind, randomized study were published in the journal JAMA.
—Melissa Rudy, FOXNews.com, 2 Apr. 2025
The study was not double-blind (double-blind means that neither the participants nor the researchers know which treatment the individual participants are receiving).
—Heather Jones, Verywell Health, 19 Mar. 2025
This felt more like a double-blind scam with Doogie Howser pulling the strings.
—John Romano, Orlando Sentinel, 25 Jan. 2025
Rigorous research that informed the California ban, including double-blind studies that control for variations in children’s diets, has found an association between various artificial color additives and hyperactivity.
—Ali Francis, Bon Appétit, 15 Jan. 2025
The efficacy and safety of ginger (Zingiber officinale) rhizome extract in outpatients with COVID-19: A randomized double-blind placebo-control clinical trial.
—Dan Perry, Newsweek, 2 Jan. 2025
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The Washington Post, San Diego Union-Tribune, 27 May 2025
Experts have pushed back against this claim about vaccine testing, pointing to various double-blind studies for inoculations against MMR, polio and the flu, among others.
—Joseph Choi, The Hill, 8 May 2025
The encouraging results have laid the groundwork for the next phase: double-blind, randomized clinical trials — the gold standard for proving treatment efficacy.
—Jenny Lehmann, Discover Magazine, 1 May 2025
The findings of the double-blind, randomized study were published in the journal JAMA.
—Melissa Rudy, FOXNews.com, 2 Apr. 2025
The study was not double-blind (double-blind means that neither the participants nor the researchers know which treatment the individual participants are receiving).
—Heather Jones, Verywell Health, 19 Mar. 2025
This felt more like a double-blind scam with Doogie Howser pulling the strings.
—John Romano, Orlando Sentinel, 25 Jan. 2025
Rigorous research that informed the California ban, including double-blind studies that control for variations in children’s diets, has found an association between various artificial color additives and hyperactivity.
—Ali Francis, Bon Appétit, 15 Jan. 2025
The efficacy and safety of ginger (Zingiber officinale) rhizome extract in outpatients with COVID-19: A randomized double-blind placebo-control clinical trial.
—Dan Perry, Newsweek, 2 Jan. 2025
Cite this Entry
“Double-blind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/double-blind. Accessed 6 Jun. 2025.
Copy CitationMedical Definition
double-blind
adjective
dou·ble-blind
ˌdəb-əl-ˈblīnd
: of, relating to, or being an experimental procedure in which neither the subjects nor the experimenters know which subjects are in the test and control groups during the actual course of the experiments compare open-label, single-blind
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