The Collaborative International Dictionary of English v.0.48:

Neuralgia \Neu*ral"gi*a\, n. [NL., from Gr. ney^ron nerve + ?
   pain. See nerve.] (Med.)
   A disease, the chief symptom of which is a very acute pain,
   exacerbating or intermitting, which follows the course of a
   nervous branch, extends to its ramifications, and seems
   therefore to be seated in the nerve. It seems to be
   independent of any structural lesion. --Dunglison.
   [1913 Webster]

WordNet (r) 3.0 (2006):

neuralgia
    n 1: acute spasmodic pain along the course of one or more nerves
         [syn: neuralgia, neuralgy]

Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "neuralgia":
   MS, amyotrophic lateral sclerosis, brain disease, cephalalgia,
   cerebral palsy, chorea, emotional disorder, epilepsy,
   falling sickness, glossopharyngeal neuralgia, headache,
   herpes zoster, ischialgia, migraine, multiple sclerosis,
   nervous disorder, neuritis, neuropathy, organic psychosis, palsy,
   polyneuritis, pressure neuropathy, priapism, radiculitis,
   sciatic neuritis, sciatica, shaking palsy, shingles,
   spastic paralysis, the jerks, tic douloureux, toxic psychosis