predictor

noun3

1. •
   Something that anticipates, predicts, or foretells.

   • The rainfall in April is a predictor for the number of mosquitoes in May.
   • The predictor in the traffic-light control circuit tries to figure out how fast to change the lights.
2. •
   A predictor variable.
3. •
   One who predicts.

   • So if a prophet isn’t primarily a future predictor, what is a prophet? — 2015