endoscope

noun

en·​do·​scope ˈen-də-ˌskōp How to pronounce endoscope (audio)
: an illuminated usually fiber-optic flexible or rigid tubular instrument for visualizing the interior of a hollow organ or part (such as the bladder or esophagus) for diagnostic or therapeutic purposes that typically has one or more channels to enable passage of instruments (such as forceps or scissors)
endoscopy noun

Did you know?

The Greek prefix endo- means "within, inside", so around 1860 an early crude instrument for looking deep inside the body was named the endoscope. But modern endoscopy required the invention of the electric lightbulb and then fiber-optic cable, so the first modern endoscopes date only to 1967. An endoscope may be inserted through a natural passageway (for example, through the nose or down the esophagus) or through a tiny cut in the skin. A tiny camera with a light at the end of the cable sends back images onto a screen, and the surgeon uses special instruments that work through a tube alongside the cable. There are now specialized types of endoscopes for every part of the body, where they can take tissue samples, cut out small growths, or remove foreign objects.

Examples of endoscope in a Sentence

Recent Examples on the Web In the former case, an endoscope gets inserted into the wrist-side incision and guides the severing of the ligament in the palm-side incision. Scott Sundick, Verywell Health, 3 June 2024 Patients must be given general anesthesia, as an endoscope is inserted into the mouth and down to the cricopharyngeal muscle. Laurie Saloman, Verywell Health, 17 May 2024 However, navigating an endoscope—a skill not every surgeon possesses—can prolong an already lengthy procedure. Jolene Edgar, Allure, 1 May 2024 Probing with an endoscope, the doctors visualized a worm at the point where the common bile duct joins with the pancreatic bile duct at the entrance to the small intestine. Beth Mole, Ars Technica, 31 Aug. 2023 These cables—similar to the imaging cables in some endoscopes—contain a bundle of fiber cores that line up with the on-chip arrays, giving each microLED its own light path. IEEE Spectrum, 11 Dec. 2022 With that in mind, some doctors might imagine an accelerator that is small enough to insert inside the body via an endoscope. Rahul Rao, Popular Science, 2 Nov. 2023 Then, to find out exactly which neurons the amphetamines were interacting with, his team implanted small endoscopes into each mouse’s brain and rigged tiny 2-gram microscopes to peer through the endoscopes. WIRED, 7 Aug. 2023 For endoscopic surgery, there will also be a rigid fiberoptic scope called an endoscope that delivers live images to a video monitor. Stuart Hershman, Verywell Health, 27 June 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'endoscope.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1861, in the meaning defined above

Time Traveler
The first known use of endoscope was in 1861

Dictionary Entries Near endoscope

Cite this Entry

“Endoscope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/endoscope. Accessed 23 Jun. 2024.

Kids Definition

endoscope

noun
en·​do·​scope ˈen-də-ˌskōp How to pronounce endoscope (audio)
: a tubular medical instrument that allows the interior of a hollow organ or body part to be seen
endoscopic
ˌen-də-ˈskäp-ik
adjective

Medical Definition

endoscope

noun
en·​do·​scope ˈen-də-ˌskōp How to pronounce endoscope (audio)
: an illuminated usually fiber-optic flexible or rigid tubular instrument for visualizing the interior of a hollow organ or part (as the bladder or esophagus) for diagnostic or therapeutic purposes that typically has one or more channels to enable passage of instruments (as forceps or scissors)
endoscopy noun
plural endoscopies

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