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prosthesis

[pros-thee-sis for 1; pros-thuh-sis for 2] /prɒsˈθi sɪs for 1; ˈprɒs θə sɪs for 2/
noun, plural prostheses
[pros-thee-seez for 1;pros-thuh-seez for 2] /prɒsˈθi siz for 1;ˈprɒs θəˌsiz for 2/ (Show IPA)
1.
a device, either external or implanted, that substitutes for or supplements a missing or defective part of the body.
2.
Grammar, Prosody. the addition of one or more sounds or syllables to a word or line of verse, especially at the beginning.
Origin
1545-1555
1545-55; < Late Latin < Greek prósthesis a putting to, addition, equivalent to prós to + thésis a placing; see thesis
Related forms
prosthetic
[pros-thet-ik] /prɒsˈθɛt ɪk/ (Show IPA),
adjective
prosthetically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for prostheses

prosthesis

/ˈprɒsθɪsɪs; prɒsˈθiːsɪs/
noun (pl) -ses (-ˌsiːz)
1.
(surgery)
  1. the replacement of a missing bodily part with an artificial substitute
  2. an artificial part such as a limb, eye, or tooth
2.
(linguistics) another word for prothesis
Derived Forms
prosthetic (prɒsˈθɛtɪk) adjective
prosthetically, adverb
Word Origin
C16: via Late Latin from Greek: an addition, from prostithenai to add, from pros- towards + tithenai to place
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for prostheses

prosthesis

n.

1550s, "addition of a letter or syllable to a word," from Late Latin, from Greek prosthesis "addition," from prostithenai "add to," from pros "to" + tithenai "to put, place" (see theme). Meaning "artificial body part" is first recorded c.1900, from earlier use to describe the medical art of making artificial limbs (1706), on notion of "that which is added to" the injured body.

Online Etymology Dictionary, © 2010 Douglas Harper
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prostheses in Medicine

prosthesis pros·the·sis (prŏs-thē'sĭs)
n. pl. pros·the·ses (-sēz)

  1. An artificial device used to replace a missing body part, such as a limb or a heart valve.

  2. Replacement of a missing body part with such a device.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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prostheses in Science
prosthesis
  (prŏs-thē'sĭs)   
Plural prostheses (prŏs-thē'sēz)
An artificial device used to replace a missing or defective body part, such as a limb or a heart valve.

prosthetic adjective (prŏs-thět'ĭk)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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15
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