1
: of, relating to, or being a prosthesis
a prosthetic limb
prosthetic devices
These researchers will develop ways to connect prostheses more soundly to the bone, coordinate brain signals with prosthetic movement, and create properly rotating artificial joints.Sheela Raman
Similar prevention is recommended if you have leaky, prolapsed, or prosthetic heart valves.Consumer Reports
also : of or relating to prosthetics
prosthetic research
2
: of, relating to, or constituting a nonprotein group of a conjugated protein
covalently bound prosthetic groups
a heme prosthetic group

Examples of prosthetic in a Sentence

Recent Examples on the Web
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Overall, the Netflix limited series received a total of seven Emmy nominations, including two for makeup, prosthetic and nonprosthetic. Beatrice Verhoeven, HollywoodReporter, 1 Aug. 2026 The clip features Momoa as a green-skinned monster with prosthetic fangs and pointed claws. Chanel Vargas, InStyle, 30 July 2026 The technology is designed to improve the control of advanced prosthetic limbs while reducing pain associated with conventional amputations. Kaif Shaikh, Interesting Engineering, 27 July 2026 Under the rules of the amputee cup, a seven-a-side soccer tournament, all prosthetic limbs must be removed before the game kicks off. ABC News, 17 July 2026 See All Example Sentences for prosthetic

Word History

First Known Use

1872, in the meaning defined at sense 1

Time Traveler
The first known use of prosthetic was in 1872

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Cite this Entry

“Prosthetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prosthetic. Accessed 7 Aug. 2026.

Medical Definition

prosthetic

adjective
1
: of, relating to, or being a prosthesis
a prosthetic device
prosthetic limbs
also : of or relating to prosthetics
prosthetic research
2
: of, relating to, or constituting a nonprotein group of a conjugated protein

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