hemicrania
/hɛmɪkrɑːˈniːə/ hə-mik-kray-NEE-uh
Definitions
1. noun
a recurring, usually one-sided headache, often involving pain on one side of the head, typically on the same side each time it occurs
“The patient was diagnosed with hemicrania, a condition that caused her to experience severe headaches on one side of her head.”