prognostic > define

noun

• A sign of something about to happen.
  • usage: "he looked for an omen before going into battle"
  • synonyms: omen, portent, presage, prognostication, prodigy

adjective

• Of or relating to prediction; having value for making predictions.
  • synonyms: predictive, prognosticative

• (a.) A sign or symptom indicating the course and termination of a disease.
• (a.) That which prognosticates; a sign by which a future event may be known or foretold; an indication; a sign or omen; hence, a foretelling; a prediction.
• (v.t.) To prognosticate.
• (a.) Indicating something future by signs or symptoms; foreshowing; aiding in prognosis; as, the prognostic symptoms of a disease; prognostic signs.