prognosis Meaning, Definition & Usage

  1. noun a prediction about how something (as the weather) will develop
    forecast.
  2. noun a prediction of the course of a disease
    prospect; medical prognosis.

WordNet

Prog*no"sis noun
Etymology
L., fr. Gr. , fr. to know beforehand; before + to know. See Know.
Definitions
  1. (Med.) The act or art of foretelling the course and termination of a disease; also, the outlook afforded by this act of judgment; as, the prognosis of hydrophobia is bad.

Webster 1913