Dictionary.com
Thesaurus.com

physiologist

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

noun

  1. a specialist in physiology.


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.

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But as an exercise physiologist who has spent a lifetime working with those same professional athletes, I think we’ve made a crucial mistake.

From Slate ● Aug. 11, 2026

Some 180 applications were received for the role of physiologist alone, with Rachel McCormick willing to uproot her life from Australia to take the job.

From BBC ● Aug. 10, 2026

Stanford professor Jamie Zeitzer, a physiologist who studies circadian cycles and how humans respond to light, supports ending the twice-a-year time changes.

From Los Angeles Times ● Jul. 14, 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

On New Year’s Eve in 1866, Mendel wrote to the Swiss plant physiologist Carl von Nägeli in Munich, enclosing a description of his experiments.

From "The Gene" by Siddhartha Mukherjee

Random Word

Spin the wheel and learn a new word!

Get a word

Vocabulary.com logo
by dictionary.com

Join 14,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training