Medical Definition of TONUS. 1. : tone 2a. 2. : a state of partial contraction that is characteristic of normal muscle, is maintained at least in part by a continuous bombardment of motor impulses originating reflexly, and serves to maintain body postureâcalled also muscle tone; compare clonus.
Neuralgia is the definitive term for nerve pain. Words ending in -algia indicate pain. A closely related word is neuropathy. It indicates an injury, disease, deterioration, defect or other abnormality of the nerve, which usually produces pain, pos...
Medical Definition of Pain, shingles. Pain, shingles: Localized pain in the area of involvement of shingles. When such pain persists beyond one month it is referred to as postherpetic neuralgia. The most common complication of shingles is postherpetic neuralgia. This occurs when the pain associated with shingles persists beyond one month, even after the rash is gone. The pain can be severe and debilitating and occurs primarily in persons over the age of 50.