prognostic
adjective
[ prɒɡˈnɒstɪk ]
• relating to or serving to predict the likely course of a medical condition.
• "the prognostic importance of the antibody"
prognostic
noun
• an advance indication of a future event; an omen.
• "a pale moon and watery sun are known as prognostics of rain"
Origin:
late Middle English: from Latin prognosticus from Greek prognōstikos, from prognōsis (see prognosis).