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internist

American  
[in-tur-nist, in-tur-nist] / ˈɪn tɜr nɪst, ɪnˈtɜr nɪst /

noun

  1. a physician specializing in the diagnosis and nonsurgical treatment of diseases, especially of adults.


internist British  
/ ɪnˈtɜːnɪst, ˈɪntɜːnɪst /

noun

  1. a physician who specializes in internal medicine

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of internist

An Americanism dating back to 1900–05; intern(al medicine) + -ist

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.

In February, Arthur Rose stepped into his office as an internist doctor for the last time after practising medicine for over 65 years.

From BBC • Jun. 13, 2026

“Patients are self-reporting, and telehealth companies don’t have the patient in front of them to conduct a proper medical assessment,” said Rupal Mathur, an internist in Houston whose practice specializes in weight loss.

From The Wall Street Journal • May 17, 2026

“Older patients need to change their mindset,” said Adam Rosenbluth, a New York City-based internist and cardiologist.

From MarketWatch • Feb. 7, 2026

The board-certified internist asserted her authority by wielding data, what she called “brute force” and the soft persuasion of an occasional gift of an orchid, picked from her garden in suburban Maryland.

From Salon • Jun. 18, 2025

Farmer was trained as an internist and ID specialist, but he had studied other fields on his own, including obstetrics and gynecology, because the needs of his patients demanded it.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

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