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8 Words That Are Older Than You Think

cluster headache

noun, Pathology
1.
a type of severe recurrent headache associated with dilated carotid arteries and the release of histamine, characterized by sudden attacks of intense pain behind the nostril and eye on one side and accompanied by runny nose, tearing, and flushed skin.
Origin
1950-1955
1950-55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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cluster-headache in Medicine

cluster headache clus·ter headache (klŭs'tər)
n.
A recurring headache marked by severe pain in the eye or temple on one side of the head, usually occurring in males. Also called erythroprosopalgia, histaminic headache.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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cluster-headache in Science
cluster headache
  (klŭs'tər)   
A recurring headache, most common in males, characterized by severe pain in one eye or the adjacent temple, watering of the eye, and runny nose.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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