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Noun: cluster headache
  1. A painful recurring headache associated with the release of histamine from cells
    - histamine headache

Derived forms: cluster headaches

Type of: cephalalgia, head ache, headache

Encyclopedia: Cluster headache

Nearest

clusia
Clusia flava
Clusia insignis
Clusia major
Clusia rosea
Clusiaceae
cluster
cluster bean
cluster bomb
cluster bomblet
cluster headache
cluster of differentiation 4
cluster of differentiation 8
clustered
clustered bellflower
clustered lady's slipper
clustered poppy mallow
clusterfuck
clustering
clutch
clutch bag