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anesthesia

noun

an·​es·​the·​sia ˌa-nəs-ˈthē-zhə How to pronounce anesthesia (audio)
1
: loss of sensation with or without loss of consciousness
The patient was given intravenous medication to induce anesthesia.
… doctors freeze the tumor with little coils filled with liquid nitrogen that are inserted in the prostate under anesthesia. Andy Grove
Awareness during anesthesia is a serious complication with potential long-term psychological consequences. Michael S. Avidan et al.
We often radiograph dogs when they are under anesthesia for spaying or neutering or other routine procedures. Bonnie Wilcox
see also general anesthesia, local anesthesia
2
: an agent that produces anesthesia : anesthetic
A capnometer measures the amount of carbon dioxide in exhaled air, thereby insuring that the tubes bringing oxygen and anesthesia to the patient are properly placed. Lisa Belkin
She was still groggy from her anesthesia, and she had an I.V. tube in her arm. The New Yorker
These substances [=endorphins], which have been identified in recent years through research on brain chemistry, act as a natural anesthesia that can lessen extreme pain. Norman Cousins

Example Sentences

The patient was given an injection to induce anesthesia.
Recent Examples on the Web The whole procedure, from local anesthesia to walking out the door, took about 30 minutes. Melissa Matthews, SELF, 3 Aug. 2022 Medicines were running so low that surgeons carried out amputations without sufficient anesthesia. New York Times, 20 July 2022 The brain itself has no pain receptors, and brain surgery is already often carried out under local anesthesia. Jonathan Vanian, Fortune, 7 July 2022 Typically done under local anesthesia in less than an hour, the operation shortens the space between the bottom of the nose and the top of the lips by carving out a bullhorn-shaped strip of skin just below the nostrils. Emily Rekstis, Allure, 25 May 2022 Doctors at the Pink House are limited by state law in their ability to administer or provide medication to their patients, so all procedures are performed under local anesthesia. Globe Staff, BostonGlobe.com, 21 May 2022 Options will vary by health center or clinic, but some options include local anesthesia, minimal sedation, moderate sedation, or deep sedation. Abby Dupes, Seventeen, 19 May 2022 Both visits are performed under local anesthesia and during the period between the first and second visit the patient wears temporary veneers, which enables the patient to function in their daily life. Brooklyn White, Essence, 30 Apr. 2022 According to a 2016 paper published in ACOG Clinical6, one study of 199 people found that local anesthesia didn’t reduce pain during IUD insertion compared to a placebo gel. Jessica Toscano, SELF, 26 Apr. 2022 See More

Word History

Etymology

New Latin, from Greek anaisthēsia insensibility, from a- + aisthēsis perception, from aisthanesthai to perceive — more at audible

First Known Use

circa 1721, in the meaning defined at sense 1

Time Traveler
The first known use of anesthesia was circa 1721

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