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

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

And no amount of randomized, double-blind trials can prove the ultimate importance of love, compassion, and forgiveness. —Arianna Huffington, TIME, 11 Dec. 2024

The company’s website also mentions a clinical trial on human subjects that involved a double-blind trial with 30 participants in which healthy adults were given either AG1 or a placebo for one month. —Martin Fritz Huber, Outside Online, 19 Nov. 2024

The officiant describes Love Is Blind as the most important double-blind experiment for these two scientists. —Jennifer Zhan, Vulture, 23 Oct. 2024

In double-blind lab tests, two canines proved able to correctly pick out the scent of children infected with malaria parasites 70 percent of the time. —Megan Molteni, WIRED, 30 Oct. 2018

Word History

First Known Use

1950, in the meaning defined above

Rhymes for double-blind

• countersigned
• disinclined
• humankind
• interlined
• intertwined
• mastermind
• misaligned
• nonaligned
• predefined
• realigned
• reassigned
• recombined

Medical 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