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...
Nerve pain, or neuropathic pain, is pain resulting from nerve damage. Nerve pain can result from postherpetic neuralgia (PHN) as well as a variety of other illnesses and conditions or nerve injuries. Nerve pain is often described as [source: NINDS 1  ]: Burning.2  Stabbing pain.erve pain, or neuropathic pain, is pain resulting from nerve damage. Nerve pain can result from postherpetic neuralgia (PHN) as well as a variety of other illnesses and conditions or nerve injuries. Nerve pain is often described as [source: NINDS 1  ]: Burning. 2  Stabbing pain.