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...
postherpetic neuralgia. Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia. neuralgia. [nooÍ¡-ralÂ´jah] pain in a nerve or along the course of one or more nerves, usually consisting of a sharp, spasmlike pain that may recur at intervals. It is caused by inflammation of or injury to a nerve or group of nerves.