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

The "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

Every 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

Examples of physiologist in a Sentence

Recent Examples on the Web

Stanford professor Jamie Zeitzer, a physiologist who studies circadian cycles and how humans respond to light, supports ending the twice-a-year time changes. — Iris Kwok, Los Angeles Times, 14 July 2026

Other research pointed in the same direction, and by 2008, Falk and other exercise physiologists were arguing against the status-quo assumption that kids had some major natural deficits in thermoregulation. — Daniel Engber, The Atlantic, 11 July 2026

There was a physiologist John Haldane about a century ago who pointed this out. — Quanta Magazine, 9 July 2026

In the early 19th century, Karl Friedrich Burdach, a German physiologist and physician, began studying the brain. — Angelica Calabrese, Longreads, 7 July 2026

Word History

First Known Use

1666, in the meaning defined above

Rhymes for physiologist

• apologist
• biologist
• ecologist
• ethnologist
• geologist
• hydrologist
• neurologist
• oncologist
• pathologist
• philologist
• psychologist
• technologist

Kids Definition

physiologist

noun

phys·​i·​ol·​o·​gist

ˌfiz-ē-ˈäl-ə-jəst

: a specialist in physiology

Medical Definition

physiologist

noun

phys·​i·​ol·​o·​gist ˌfiz-ē-ˈäl-ə-jəst 

: a specialist in physiology