HEADACHE
\hˈɛde͡ɪk], \hˈɛdeɪk], \h_ˈɛ_d_eɪ_k]\
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pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
By Princeton University
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pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
By DataStellar Co., Ltd
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Pain in the cranial region that may occur as an isolated and benign symptom or as a manifestation of a wide variety of conditions including SUBARACHNOID HEMORRHAGE; CRANIOCEREBRAL TRAUMA; CENTRAL NERVOUS SYSTEM INFECTIONS; INTRACRANIAL HYPERTENSION; and other disorders. In general, recurrent headaches that are not associated with a primary disease process are referred to as HEADACHE DISORDERS (e.g., MIGRAINE).
By DataStellar Co., Ltd
By William Dodge Lewis, Edgar Arthur Singer
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Cephalalgia, a diffuse pain in various parts of the head, not confined to the area of distribution of any nerve.
By Stedman, Thomas Lathrop
By James Champlin Fernald
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Pain in the head ; cephalalgia.
By Willam Alexander Newman Dorland
