Prosthesis
Pronunciation: pros-THEE-sis
An artificial device that replaces a missing or non-functional body part, typically a limb, joint, or sensory organ.
Full Definition
A prosthesis is an externally applied or surgically implanted device designed to substitute for an absent or impaired body part, restoring functional, cosmetic, or both types of capability to the user. In rehabilitation contexts, the term most frequently refers to limb prostheses (upper or lower extremity), but editors will also encounter it in relation to ocular, auricular, and dental prostheses. The plural form is 'prostheses' — editors must flag incorrect usage of 'prosthesises' or 'prosthetics' when the singular device is meant. 'Prosthetics' refers to the field or discipline, not to an individual device.
Usage
Usage note: Use 'prosthesis' for the individual device, 'prosthetics' for the field. Never write 'prosthetic' as a noun in formal clinical copy; use 'prosthesis' or 'prosthetic device'.
In Context
- "The patient was fitted with a myoelectric prosthesis following a transradial amputation." — Clinical assessment report
- "The manuscript incorrectly used 'prosthetics' where 'prosthesis' (singular device) was intended." — Editorial correction note