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.

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Etymology

Origin of experimental group

First recorded in 1845–50

Compare meaning

How does experimental-group compare to similar and commonly confused words? Explore the most common comparisons:

• control group vs. experimental group

Example Sentences

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.

From Science Daily • Apr. 17, 2024

Her big break came in 1964, when the director Mr. Brook brought her into an experimental group he was assembling for the recently formed Royal Shakespeare Company.

From New York Times • Jun. 15, 2023

The experimental group of 87 mentors instead completed a different 2-hour module focused on enhancing the mentor’s cultural diversity awareness.

From Science Magazine • May 23, 2023

To choose a material to work with and create this light in the lab, the scientists are aiming to team up with an experimental group.

From Scientific American • Mar. 16, 2023

He was one of the most brilliant geneticists of Earth, and came to Mars with an experimental group that was to try to develop a human type that could live more comfortably under Martian conditions.

From Rebels of the Red Planet by Fontenay, Charles Louis