Definition for PROS'THE-SIS, or PROTH'E-SIS

PROS'THE-SIS, or PROTH'E-SIS, n.1 [Gr.]

  1. In surgery, the addition of an artificial part to supply a defect of the body; as a wooden leg, &c. – Quincy. Coxe.
  2. In medicine, an overlapping; as, the prosthesis of one febrile period upon another.

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