as in researcher
one who observes or studies by close examination and systematic inquiry
a psychology experimenter doing research into the sources of panic attacks
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Recent Examples of experimenter
The research team led by Schlamminger performed a completely blind analysis, randomizing the values of the masses used to prevent experimenter bias.
—
Big Think, 6 May 2026
The flagellar motor was discovered by the late Howard Berg, an ingenious experimenter who spent most of his career at Harvard.
—Quanta Magazine, 20 Apr. 2026
The sleeping subjects received math questions and dreamed about the solutions, relaying them to the experimenter.
—Veronique Greenwood, Time, 26 Feb. 2026
Then, an experimenter presented the bonobo with two empty, transparent cups and pretended to pour juice from an empty pitcher into each cup.
—Amarachi Orie, CNN Money, 9 Feb. 2026
Anthropic’s experimenters were not thrilled.
—Gideon Lewis-Kraus, New Yorker, 9 Feb. 2026
Horses that smelled the fear samples touched the experimenter less than those in a control group or those that smelled joyful sweat samples.
—Marta Hill, Scientific American, 14 Jan. 2026
Bacharach and other pop greats were rescued later by experimenters like Elvis Costello and White Stripes.
—Michael Barnes, Austin American Statesman, 8 Jan. 2026
If the experimenter reads the information about which slit the photon passed through, there will never be an interference pattern.
—Paul Sutter, Space.com, 20 Dec. 2025
Big Think, 6 May 2026
The flagellar motor was discovered by the late Howard Berg, an ingenious experimenter who spent most of his career at Harvard.
—Quanta Magazine, 20 Apr. 2026
The sleeping subjects received math questions and dreamed about the solutions, relaying them to the experimenter.
—Veronique Greenwood, Time, 26 Feb. 2026
Then, an experimenter presented the bonobo with two empty, transparent cups and pretended to pour juice from an empty pitcher into each cup.
—Amarachi Orie, CNN Money, 9 Feb. 2026
Anthropic’s experimenters were not thrilled.
—Gideon Lewis-Kraus, New Yorker, 9 Feb. 2026
Horses that smelled the fear samples touched the experimenter less than those in a control group or those that smelled joyful sweat samples.
—Marta Hill, Scientific American, 14 Jan. 2026
Bacharach and other pop greats were rescued later by experimenters like Elvis Costello and White Stripes.
—Michael Barnes, Austin American Statesman, 8 Jan. 2026
If the experimenter reads the information about which slit the photon passed through, there will never be an interference pattern.
—Paul Sutter, Space.com, 20 Dec. 2025
Recent Examples of Synonyms for experimenter
researcher
Noun
-
Nobody knows how often adverse events occur, said Kristen Nixon, a Johns Hopkins University researcher who has studied posts about weight loss drugs on Reddit, a popular online forum.—
Maia Rosenfeld,
NBC news,
29 May 2026
-
With this in mind, researchers ran some simulations to explore how all that jostling for position might have affected the moons of Jupiter and Uranus in particular — and the results suggest that these two planets' moons only survived that tumultuous time because of a giant planet that didn't.—
Kiona N. Smith,
Space.com,
29 May 2026
Cite this Entry
“Experimenter.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/experimenter. Accessed 7 Jun. 2026.
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