experimental group

noun

1. (in an experiment or clinical trial) a group of subjects who are exposed to the variable under study.

   a lower infection rate in the experimental group that received the vaccine.

Word History and Origins

Origin of experimental group¹

First recorded in 1845–50

Example Sentences

Jeff Parker ETA IVtet / Zebulon / Dec. 16-17 The guitar genius was the beating heart of the late, great Highland Park jazz club ETA, whose residencies spun off a number of compelling combos like the experimental group SML.

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You won't find it at your local bodega, but in the coldest place in New York: the lab of Columbia physicist Sebastian Will, whose experimental group specializes in pushing atoms and molecules to temperatures just fractions of a degree above absolute zero.

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Animals in the experimental group had about 20 times as much copper in their feces as animals in the control group, and after they stopped receiving copper their levels of the metal returned to baseline.

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For one, the study presents data from only small numbers of mice—ranging from one to 18 per experimental group—she says.

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She had recently gone through a painfully high-profile divorce from her husband of 27 years, Thurston Moore, and in the wake of their split, their band Sonic Youth — the freewheeling and fearlessly experimental group that almost single-handedly defined the sound and ethos of American alternative rock — ended its 30-year-run.

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