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experimental group

American  

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.

Etymology

Origin of experimental group

First recorded in 1845–50

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.