surgery
Americannoun
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the art, practice, or work of treating diseases, injuries, or deformities by manual or operative procedures.
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the branch of medicine concerned with such treatment.
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treatment, as an operation, performed by a surgeon.
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a room or place for surgical operations.
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British. a doctor's or dentist's office or office hours.
noun
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the branch of medicine concerned with treating disease, injuries, etc, by means of manual or operative procedures, esp by incision into the body
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the performance of such procedures by a surgeon
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a place where a doctor, dentist, etc, can be consulted
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an occasion when an MP, lawyer, etc, is available for consultation
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an operating theatre where surgical operations are performed
Other Word Forms
Derived Forms
Etymology
Origin of surgery
1250–1300; Middle English surgerie < Old French cirurgerie chirurgery
Explanation
Surgery is a medical procedure, usually involving an incision and instruments. A surgery is done to fix or prevent a health problem. There are a lot of kinds of surgery in the world. Some are very serious, like brain surgery and heart surgery. Others are minor, like getting your appendix removed. In most cases, you'll be unconscious for surgery, to make it easier for the surgeon to get the job done. You can also call the room where surgeries are done a surgery, and talk about the field of surgery.
Vocabulary lists containing surgery
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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 surgery is lovely, but the difficulty is getting there and back."
From BBC • Jun. 7, 2026
Mexican midfielder Edson Álvarez underwent surgery on his left ankle after getting injured during a match with his club team, Fenerbahce, last February.
From Los Angeles Times • Jun. 7, 2026
Along with routine screening through mammography or MRI, some individuals with inherited genetic mutations that greatly increase breast cancer risk may choose preventive surgery, including prophylactic mastectomy.
From Science Daily • Jun. 6, 2026
Ott’s weight loss started with bariatric surgery in 2017, which helped her lose over 100 pounds, followed by weight-loss medications starting in 2023 to shed an additional 30 pounds.
From The Wall Street Journal • Jun. 5, 2026
I ask God to make his surgery go smoothly, and for him to get better soon.
From "Amina's Song" by Hena Khan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.