cluster headache

noun Pathology.
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.

1950–55 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

cluster headache clus·ter headache (klŭs'tər)
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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American Heritage
Science Dictionary
cluster headache   (klŭs'tər)  Pronunciation Key 
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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Example sentences
Cluster headache sufferers tend to move about while migraine sufferers usually want to lie down.
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