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[prog-nos-ti-keyt] /prɒgˈnɒs tɪˌkeɪt/
verb (used with object), prognosticated, prognosticating.
to forecast or predict (something future) from present indications or signs; prophesy.
to foretoken; presage:
birds prognosticating spring.
verb (used without object), prognosticated, prognosticating.
to make a forecast; prophesy.
Origin of prognosticate
late Middle English
1375-1425; late Middle English < Medieval Latin prognōsticātus, past participle of prognōsticāre. See prognostic, -ate1
Related forms
prognosticative, prognosticatory
[prog-nos-ti-kuh-tawr-ee, -tohr-ee] /prɒgˈnɒs tɪ kəˌtɔr i, -ˌtoʊr i/ (Show IPA),
prognosticator, noun
nonprognosticative, adjective
unprognosticated, adjective
unprognosticative, adjective
1. foretell, foresee, project. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for prognosticator
Contemporary Examples
Historical Examples
  • Two suns shone in the sky, prognosticator of still deeper frost.

    The Conquest

    Eva Emery Dye
  • It seems to me that the examiner should be an exceedingly able diagnostician and prognosticator.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • The prognosticator in these cases is deceived, because he is solely directed by the order of his indices.

  • This pretty spotted little beetle was used formerly in the neighbourhood of Llanidloes as a prognosticator of the weather.

    Welsh Folk-Lore Elias Owen
  • A small sea-fowl which the natives of the Western Isles of Scotland trust in, as a prognosticator of the weather.

    The Sailor's Word-Book William Henry Smyth
  • A sea-bird nearly as large as a duck, held by the people of the Hebrides as a prognosticator of weather.

    The Sailor's Word-Book William Henry Smyth
  • When the patchwork of mentalities was complete he allowed the conclusions of the prognosticator to occupy his mind.

    The Honored Prophet William E. Bentley
  • The prognosticator could not lie, and soon the facade dissolved into individual reactions as acceptance became general.

    The Honored Prophet William E. Bentley
  • He considered himself a prognosticator; and, what was more unfortunate, some eminent persons really thought he was.

British Dictionary definitions for prognosticator


to foretell (future events) according to present signs or indications; prophesy
(transitive) to foreshadow or portend
Derived Forms
prognostication, noun
prognosticative, adjective
prognosticator, noun
Word Origin
C16: from Medieval Latin prognōsticāre to predict
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for prognosticator

1550s, agent noun in Latin form from prognosticate.



early 15c., a back-formation from prognostication and also from Medieval Latin prognosticatus, past participle of prognosticare (see prognostication). Related: Prognosticated; prognosticating.

Online Etymology Dictionary, © 2010 Douglas Harper
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prognosticator in Medicine

prognosticate prog·nos·ti·cate (prŏg-nŏs'tĭ-kāt')
v. prog·nos·ti·cat·ed, prog·nos·ti·cat·ing, prog·nos·ti·cates
To predict according to present indications or signs; foretell.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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