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.
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.
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.
[kluhs-ter] /ˈklʌs tər/ noun 1. a number of things of the same kind, growing or held together; a bunch: a cluster of grapes. 2. a group of things or persons close together: There was a cluster of tourists at the gate. 3. U.S. Army. a small metal design placed on a ribbon representing an awarded […]
noun, Furniture. 1. a leg having the form of a cluster of columns or shafts.
noun 1. a pine tree, Pinus pinaster, having long thick needles and large clustered cones, native to the Mediterranean coastal regions.
noun, Mathematics. 1. a point of a net having the property that the net is frequently in each neighborhood of the point. 2. . 3. a point of a filter having the property that every neighborhood of the point has points in common with every set in the filter.