'Hemicrania' definitions:

Definition of 'hemicrania'

From: WordNet
noun
A severe recurring vascular headache; occurs more frequently in women than men [syn: migraine, megrim, sick headache, hemicrania]

Definition of 'Hemicrania'

From: GCIDE
  • 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]