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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. 2015.
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Examples from the Web for prognosticator
Contemporary Examples
Historical Examples
  • It seems to me that the examiner should be an exceedingly able diagnostician and prognosticator.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • 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 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
  • 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
  • He considered himself a prognosticator; and, what was more unfortunate, some eminent persons really thought he was.

  • The prognosticator in these cases is deceived, because he is solely directed by the order of his indices.

  • The Mole has long been recorded as a prognosticator of change of weather, before which it becomes very active.

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

    The Honored Prophet William E. Bentley
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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