internal medicine

American

noun

the branch of medicine dealing with the diagnosis and nonsurgical treatment of diseases, especially of internal organ systems.

internal medicine British

noun

the branch of medical science concerned with the diagnosis and nonsurgical treatment of disorders of the internal structures of the body

"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

internal medicine Scientific

The branch of medicine that deals with the diagnosis and nonsurgical treatment of diseases in adults.

Etymology

Origin of internal medicine

First recorded in 1900–05

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.

The results, published in Annals of Internal Medicine, were based on 4,746 adults between ages 55 and 75.

From Science Daily • May 19, 2026

Cutting saturated fats has benefits, according to new research in the Annals of Internal Medicine.

From The Wall Street Journal • Dec. 19, 2025

One longer walk a day is better for your heart than lots of short strolls, especially if you don't exercise much, according to new research published in Annals of Internal Medicine.

From BBC • Oct. 27, 2025

The study is published in the Journal of Internal Medicine.

From Science Daily • Nov. 28, 2024

It seemed, therefore, incongruous to have the whole of Internal Medicine or the whole of Private Law condensed into one section.

From International Congress of Arts and Science, Volume I Philosophy and Metaphysics by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023