cephalalgia(n = noun.state) head ache, headache - pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs; Array
is a kind of ache, aching
has particulars: cluster headache, histamine headache, hemicrania, megrim, migraine, sick headache, sick headache, sinus headache, tension headache

   Pain in the head; headache. [1913 Webster]

N  physical pain, pain, suffering, sufferance, suffrance, bodily pain, physical pain, bodily suffering, physical suffering, body pain, mental suffering, dolour, ache, aching, smart, shoot, shooting, twinge, twitch, gripe, headache, stomach ache, heartburn, angina, angina pectoris, hurt, cut, sore, soreness, discomfort, malaise, cephalalgia, earache, gout, ischiagra, lumbago, neuralgia, odontalgia, otalgia, podagra, rheumatism, sciatica, tic douloureux, toothache, tormina, torticollis, spasm, cramp, nightmare, ephialtes, crick, stitch, thrill, convulsion, throe, throb, pang, colic, kink, sharp pain, piercing pain, throbbing pain, shooting pain, sting, gnawing pain, burning pain, excruciating pain, anguish, agony, torment, torture, rack, cruciation, crucifixion, martyrdom, toad under a harrow, vivisection, in pain, in a state of pain, pained, gouty, podagric, torminous, painful, aching, sore, raw, Special Sensation (1) Touch.