'Prognosticator' definitions:

Definition of 'prognosticator'

From: WordNet
noun
Someone who makes predictions of the future (usually on the basis of special knowledge) [syn: forecaster, predictor, prognosticator, soothsayer]

Definition of 'Prognosticator'

From: GCIDE
  • Prognosticator \Prog*nos"ti*ca`tor\, n. One who prognosticates; a foreknower or foreteller of a future course or event by present signs. --Isa. xlvii. 13. [1913 Webster]