Noun: headache 'hed,eyk
- Pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
"She experienced severe headache after working long hours at the computer";
- cephalalgia [technical]
- Something or someone that causes anxiety; a source of unhappiness
"New York traffic is a constant headache";
- concern, worry, vexation
Derived forms: headaches
Type of: ache, aching, negative stimulus
Encyclopedia: Headache, cluster