anesthesiologist

American  

[an-uhs-thee-zee-ol-uh-jist] / ˌæn əsˌθi ziˈɒl ə dʒɪst /

Or anaesthesiologist

noun

1. a physician who specializes in anesthesiology.

---

anesthesiologist British  

/ ˌænɪsˌθiːzɪˈɒlədʒɪst /

noun

1. the US name for anaesthetist Compare anesthetist

---

Etymology

Origin of anesthesiologist

First recorded in 1940–45; anesthesiolog(y) + -ist

Compare meaning

How does anesthesiologist compare to similar and commonly confused words? Explore the most common comparisons:

• anesthetist vs. anesthesiologist

Example Sentences

The anesthesiologist said he made enough to afford it, "but I've seen a lot of my friends complaining about it that they're not gonna drive as much as they used to."

From Barron's • Mar. 31, 2026

The doctor introduced himself, and an anesthesiologist did his thing.

From Los Angeles Times • Feb. 3, 2026

In 2019, Stanford University anesthesiologist Boris Heifets and his colleagues began the most ironclad blinded study yet attempted in the psychedelics world.

From Slate • Jan. 30, 2026

“You can get into fairly intimate conversations,” says Vivek Moitra, 50, an anesthesiologist and critical-care physician in New York who got into saunas a few years ago.

From The Wall Street Journal • Sep. 12, 2025

“Ten,” I say, looking past the anesthesiologist to the operating room wall, my eyes landing on a shape that’s oddly familiar.

From "Five Feet Apart" by Rachael Lippincott