Definition of "prognosticator" [prog•nos•ti•ca•tor]

• One who prognosticates or makes predictions; one who forecasts or guesses (noun)

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• "You may recall a certain prognosticator doing some fancy prognosticating on Friday."
• "What is magical about Punxsutawney is not just the movie or the mythical 127-year-old marmot known as the "prognosticator of prognosticators.""
• "Seated next to Clinton on her first visit to the kingdom, Saudi Foreign Minister Saud al-Faisal called the chief US diplomat a good "prognosticator," adding he was inclined to believe her warnings on the Revolutionary Guard."