Look up click, klik, or klick in Wiktionary, the free dictionary.
Noun. 1. induration-any pathological hardening or thickening of tissue. sclerosis. disseminated multiple sclerosis, disseminated sclerosis, MS, multiple sclerosis-a chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers.
Medical Definition of INORGANIC. 1. b: forming or belonging to the inanimate world. 2. : of, relating to, or dealt with by a branch of chemistry concerned with substances not usually classified as organic.