hemicrania

from WordNet (r) 3.0 (2006)

hemicrania
    n 1: a severe recurring vascular headache; occurs more
         frequently in women than men [syn: {migraine}, {megrim},
         {sick headache}, {hemicrania}]

from The Collaborative International Dictionary of English v.0.48

Hemicrania \Hem`i*cra"ni*a\, n. [L.: cf. F. h['e]micr[^a]nie.
   See {Cranium}, and {Megrim}.] (Med.)
   A pain that affects only one side of the head.
   [1913 Webster]

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