Dictionary

cluster headache

noun

Definition of CLUSTER HEADACHE

:  a headache that is characterized by severe pain in the eye or temple and tends to recur in a series of attacks
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First Known Use of CLUSTER HEADACHE

1953
Medical Dictionary

cluster headache

noun

Medical Definition of CLUSTER HEADACHE

:  a headache that is characterized by severe unilateral pain in the eye or temple, affects primarily men, and tends to recur in a series of attacks—called also histamine cephalalgia, histamine cephalgia, Horton's syndrome

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