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