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 sensations may be described with these buzzwords, which include: 1  Allodynia: When a person experiences pain after a stimulus that shouldnât cause pain under ordinary circumstances, it is called allodynia. 2  Hyperalgesia: If a person has hyperalgesia, mildly painful stimuli may be felt with greater intensity.