In medicine, a prosthesis is an artificial body part meant to replace one that's missing. If you were born with only one arm, doctors might fit you with a prosthesis to fill in for your missing arm.

When someone loses a body part because of illness or an accident (or if they're born without a limb or another body part), they sometimes have the option to get a prosthesis. Some prostheses are very simple duplicates of the absent part, while others are extremely complex devices. Some limb prostheses are even "robotic," allowing their users to move them as if they were real. In Greek, prosthesis means "addition."

Definitions of prosthesis

n corrective consisting of a replacement for a part of the body

prosthetic device
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glass eye
prosthesis consisting of an artificial eye made of glass
a prosthesis placed permanently in tissue
a prosthesis used to close an opening (as to close an opening of the hard palate in cases of cleft palate)
leg, peg, pegleg, wooden leg
a prosthesis that replaces a missing leg
artificial heart
a pump that replaces the natural heart
artificial joint
a metal or plastic part that is surgically implanted to replace a natural joint (possibly elbow or wrist but usually hip or knee)
breast implant
an implant for cosmetic purposes to replace a breast that has been surgically removed
dental implant
an implant that replaces a natural tooth
heart valve
an implant that replaces a natural cardiac valve
IOL, interocular lens implant, lens implant
a clear plastic lens that is implanted in the eye; usually done when the natural lens has been removed in a cataract operation
penile implant
an implant that creates an artificial erection
implant consisting of a tube made of plastic or rubber; for draining fluids within the body
Type of:
corrective, restorative
a device for treating injury or disease

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