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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There is a tragic air to watching a character who is otherwise so grounded become entangled in the elaborate nightmare of a fake college quarterback who is really a disgraced adult football player wearing a prosthetic face. Nicholas Quah, Vulture, 3 Sep. 2026 Instead, the park’s makeup team constructed prosthetic eyelashes that hide a rice-sized LED light that hangs in front of the performer’s eyes. Todd Martens, Los Angeles Times, 1 Sep. 2026 The girls’ mother, Stephanie Soares, praised Legaspi and Feir for helping to motivate her daughters, as Naya has adjusted to using her prosthetic foot and Milayna has spent time outside of her wheelchair for the first time in her life. Erin Clack, PEOPLE, 29 Aug. 2026 The Sculptor equips Wolf with a prosthetic arm called the Shinobi Prosthetic. Aman Kumar, Encyclopedia Britannica, 27 Aug. 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

Browse Nearby Words

Cite this Entry

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