cluster headache

/ˌklʌstər ˌhɛdˈeɪk/
IPA guide

Definitions of cluster headache
  1. noun
    a painful recurring headache associated with the release of histamine from cells
    synonyms: histamine headache
    see moresee less
    type of:
    cephalalgia, head ache, headache
    pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
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