physiologist
noun
phys·i·ol·o·gist
ˌfi-zē-ˈä-lə-jist 
plural physiologists
: a person specializing in the biological study of the functions and processes of living organisms and their parts : a biologist specializing in physiology
Beall also compared the percentage of hemoglobin in each person's blood that carries oxygen—a value known by physiologists as oxygen saturation.—
Jessica Gorman
Jessica GormanThe "fight or flight" reaction has long been known to physiologists: the heart beats faster, the muscles are readied and the body is primed in the most primitive of survival instincts.—David Golman
David GolmanEvery exercise program should be personally prescribed by a professional—such as a sports-medicine physician or an exercise physiologist—and should aim at improving flexibility, strength and cardiovascular functioning.—Deborah Blumenthal
Deborah BlumenthalExamples of physiologist in a Sentence
Recent Examples on the Web
The turning point for her, though, came in a physiologist’s office, where McKeen had been working on her posture, along with regular barre training.
—Sydney Lake, Fortune, 29 Mar. 2026
The side stitch is a sharp, localized pain that comes on during exercise and occurs in the abdomen, typically below the rib cage, according to Hunter Carter, an exercise physiologist at Hospital for Special Surgery in New York City.
—Jenny McCoy, SELF, 26 Mar. 2026
Brain The hypothalamus, an almond-sized portion of the brain located just above the brainstem, is hyper-sensitive to changes in core temperature, says Julien Periard, a physiologist at Aspetar who studies the mechanisms limiting prolonged exercise performance in heat.
—Brad Stulberg, Outside, 25 Mar. 2026
Getting to the root of the problem The results are consistent with what other studies have found, says Peter Catcheside, a sleep and respiratory physiologist at Flinders University in Australia who was not involved in the work.
—Veronique Greenwood, Time, 4 Mar. 2026
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Sydney Lake, Fortune, 29 Mar. 2026
The side stitch is a sharp, localized pain that comes on during exercise and occurs in the abdomen, typically below the rib cage, according to Hunter Carter, an exercise physiologist at Hospital for Special Surgery in New York City.
—Jenny McCoy, SELF, 26 Mar. 2026
Brain The hypothalamus, an almond-sized portion of the brain located just above the brainstem, is hyper-sensitive to changes in core temperature, says Julien Periard, a physiologist at Aspetar who studies the mechanisms limiting prolonged exercise performance in heat.
—Brad Stulberg, Outside, 25 Mar. 2026
Getting to the root of the problem The results are consistent with what other studies have found, says Peter Catcheside, a sleep and respiratory physiologist at Flinders University in Australia who was not involved in the work.
—Veronique Greenwood, Time, 4 Mar. 2026
See All Example Sentences for physiologist
Cite this Entry
“Physiologist.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/physiologist. Accessed 5 Apr. 2026.
Copy CitationMedical Definition
physiologist
noun
phys·i·ol·o·gist
ˌfiz-ē-ˈäl-ə-jəst
: a specialist in physiology
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