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hay fever

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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 of hay fever

First recorded in 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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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 noseTechnical 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

Word Origin and History for hay fever

n.

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

Online Etymology Dictionary, © 2010 Douglas Harper

hay fever in Medicine

hay fever

([object Object])
n.
  1. 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.

hay fever in Science

hay fever

[hā]
  1. 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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