physiologist

American  

[fiz-ee-ol-uh-jist] / ˌfɪz iˈɒl ə dʒɪst /

noun

1. a specialist in physiology.

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Etymology

Origin of physiologist

First recorded in 1655–65; physiolog(y) + -ist

Explanation

A physiologist is a scientist who studies how our organs, cells, and systems work to keep us healthy and alive. A physiologist explores how our heart pumps blood, how our lungs take in oxygen, and how our muscles move. By understanding these processes, physiologists are able to help develop treatments for diseases and improve overall health. Their work is essential in medicine, sports, and research, making sure our bodies function at their best. Through their discoveries, physiologists play a crucial role in advancing healthcare and improving quality of life.

Example Sentences

Meir, a marine biologist and physiologist, served as flight engineer on a 2019-2020 expedition to the space station and participated in the first all-female spacewalks.

From Barron's • Feb. 8, 2026

"I'm a sleep physiologist who understands the health benefits of sleep, but the strength of the association between sleep sufficiency and life expectancy was remarkable to me."

From Science Daily • Jan. 10, 2026

If you wear one equal to 10% of your body weight, it will burn an additional 8.5% calories, says Dave Looney, an exercise physiologist at CoachMePlus who has researched weighted vests for the U.S.

From The Wall Street Journal • Jun. 26, 2025

Dr Emma O'Donnell, an exercise physiologist at Loughborough University, says the lifestyle of a professional athlete puts a unique strain on the human body.

From BBC • Dec. 30, 2024

With the help of the physiologist A. V. Hill, he obtained a small grant to come up to Cambridge in the fall of 1947.

From "Double Helix" by James D. Watson