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hay fever

noun, Pathology
1.
a type of allergic rhinitis affecting the mucous membranes of the eyes and respiratory tract, affecting susceptible persons usually during the summer, caused by pollen of ragweed and certain other plants.
Origin
1820-1830
1820-30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hay-fever

hay fever

noun
1.
an allergic reaction to pollen, dust, etc, characterized by sneezing, runny nose, and watery eyes due to inflammation of the mucous membranes of the eyes and nose Technical names allergic rhinitis, pollinosis
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 hay-fever

hay fever

n.

also hay-fever, 1829, from hay + fever; earlier it was called summer catarrh.

Online Etymology Dictionary, © 2010 Douglas Harper
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hay-fever in Medicine

hay fever n.
An allergic condition affecting the mucous membranes of the upper respiratory tract and the eyes, usually characterized by nasal discharge, sneezing, and itchy, watery eyes and usually caused by an abnormal sensitivity to airborne pollen.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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hay-fever in Science
hay fever
  (hā)   
An seasonal allergic condition characterized by a sensitivity to airborne pollen, resulting in nasal discharge, sneezing, and itchy, watery eyes. It occurs especially during late spring, late summer, and early fall and can be caused by the pollens of various plants, especially ragweed and certain trees and grasses.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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9
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