internal medicine

American  

noun

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

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internal medicine British  

noun

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

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internal medicine Scientific  

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

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Etymology

Origin of internal medicine

First recorded in 1900–05

Example Sentences

See Examples For:

internal medicine

The new study, led by senior author Mandar Deepak Muzumdar, MD, associate professor of genetics and of internal medicine at YSM, sought to answer that question.

From Science Daily ● Jun. 2, 2026

Dr Satish Koul, principal director and unit head of internal medicine at Fortis Hospital Gurgaon, says hospitals routinely see cases of dehydration, low blood pressure, kidney stress and heat exhaustion during extended heatwaves.

From BBC ● May 28, 2026

But it’s attracting practitioners from internal medicine to endocrinologists.

From Barron's ● May 21, 2026

Dr. Beasley is a retired internal medicine physician living in Kansas City, Mo.

From The Wall Street Journal ● Feb. 3, 2026

She used to be chief of internal medicine at Boston University Hospital.

From "The Adoration of Jenna Fox" by Mary E. Pearson