pros·​the·​sis | \ präs-ˈthē-səs How to pronounce prosthesis (audio) , ˈpräs-thə-\
plural prostheses\ präs-​ˈthē-​ˌsēz How to pronounce prostheses (audio) , ˈpräs-​thə-​ \

Definition of prosthesis

: an artificial device to replace or augment a missing or impaired part of the body

Examples of prosthesis in a Sentence

She was fitted with a prosthesis to replace her missing leg.

Recent Examples on the Web

Trainer will soon move from the hospital to a rehabilitation facility to learn how to use prostheses. Wire Service, The Mercury News, "A woman lost her hands and legs to an infection from puppy kisses," 4 Aug. 2019 Mobius Bionics and the University of Utah have built a revolutionary prosthesis that returns the sense of touch to amputees. Daisy Hernandez, Popular Mechanics, "The Star Wars-Inspired Robotic Arm That Gives Amputees a Sense of Touch," 26 July 2019 George says the team is trying to position the feeling prosthesis as a necessary medical device that insurance would cover. Jeffrey Delviscio, Scientific American, "A Robot Hand Helps Amputees “Feel” Again," 24 July 2019 Sadler lost his right leg to complications at birth and uses a prosthesis. Mark Inabinett |, al, "Watch Julio Jones invite 10-year-old amputee to serve as Falcons’ honorary captain," 24 July 2019 In the lead up to the big competition, ETH Zurich and the Karlsruhe Institute of Technology hosted a powered arm and leg prosthesis race in Germany. Kayle Hope, Quartz, "The Cybathlon pushes the limits of bionic technology," 30 May 2019 One potential application of that work is in the building of neural prosthesis, such as an artificial retina. Quanta Magazine, "As Machines Get Smarter, Evidence They Learn Like Us," 23 July 2013 The most sophisticated modern prostheses go far beyond replicating the general contours of a missing limb or body part. Natasha Frost, Quartz, "An artificially intelligent, open-source bionic leg could change the future of prosthetics," 5 June 2019 As Murray Gell-Mann says, models are prostheses for the imagination. Quanta Magazine, "Finding the Actions That Alter Evolution," 5 Jan. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'prosthesis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of prosthesis

circa 1900, in the meaning defined above

History and Etymology for prosthesis

New Latin, from Greek, addition, from prostithenai to add to, from pros- in addition to + tithenai to put — more at pros-, do

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Statistics for prosthesis

Last Updated

14 Aug 2019

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Time Traveler for prosthesis

The first known use of prosthesis was circa 1900

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English Language Learners Definition of prosthesis

medical : an artificial device that replaces a missing or injured part of the body


pros·​the·​sis | \ präs-ˈthē-səs, ˈpräs-thə- How to pronounce prosthesis (audio) \
plural prostheses\ -​ˌsēz How to pronounce prostheses (audio) \

Medical Definition of prosthesis

: an artificial device to replace or augment a missing or impaired part of the body a dental prosthesis silicone breast and limb prostheses

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More from Merriam-Webster on prosthesis

Rhyming Dictionary: Words that rhyme with prosthesis

Spanish Central: Translation of prosthesis

Nglish: Translation of prosthesis for Spanish Speakers

Britannica English: Translation of prosthesis for Arabic Speakers Encyclopedia article about prosthesis

Comments on prosthesis

What made you want to look up prosthesis? Please tell us where you read or heard it (including the quote, if possible).


to move or obtain by small maneuvers

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