prosthetics

noun

pros·​thet·​ics präs-ˈthe-tiks How to pronounce prosthetics (audio)
plural in form but singular or plural in construction
: the medical or dental specialty concerned with the design, fabrication, and fitting of prostheses

Word History

First Known Use

circa 1894, in the meaning defined above

Time Traveler
The first known use of prosthetics was circa 1894

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Cite this Entry

“Prosthetics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prosthetics. Accessed 10 Sep. 2025.

Medical Definition

prosthetics

noun, plural in form but singular or plural in construction
pros·​thet·​ics -iks How to pronounce prosthetics (audio)
: the medical or dental specialty concerned with the design, fabrication, and fitting of prostheses
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