prognostic

adj

1. Of, pertaining to or characterized by prognosis or prediction.

noun

1. (rare)prognosis

   “There are several opinions as to what he meant But no one considers it a happy prognostic.”

   “The appearance of the tongue is closely connected with the sense of thirst, and is of considerable importance as a prognostic.”

2. A sign by which a future event may be known or foretold.

   “Careful observers may foretell the hour (By sure prognostics) when to dread a show’r. While rain depends, the pensive cat gives o’er Her frolics, and pursues her tail no more.”

   “It was even later than usual when the Comtesse quitted a brilliant réunion of all that was gayest in the royal circle, elate with the glittering triumph of gratified vanity, and reading in such success the sure prognostic of more solidly successful ambition.”

3. A prediction of the future.

   “The choice of a successor was no light matter. That choice would inevitably be considered by the country as a prognostic of the highest import.”

4. One who predicts the future.