Degeneration De*gen`er*a"tion, n. [Cf. F. d['e]g['e]n['e]ration.] 1. The act or state of growing worse, or the state of having become worse; decline; degradation; debasement; degeneracy; deterioration. Our degeneration and apostasy. --Bates. 2. (Physiol.) That condition of a tissue or an organ in which its vitality has become either diminished or perverted; a substitution of a lower for a higher form of structure; as, fatty degeneration of the liver. 3. (Biol.) A gradual deterioration, from natural causes, of any class of animals or plants or any particular organ or organs; hereditary degradation of type. 4. The thing degenerated. [R.] Cockle, aracus, . . . and other degenerations. --Sir T. Browne. Amyloid degeneration, Caseous degeneration, etc. See under Amyloid, Caseous, etc.
Amyloid Am"y*loid, Amyloidal Am`y*loid"al, a. [L. amylum starch + -oid.] Resembling or containing amyl; starchlike. Amyloid degeneration (Med.), a diseased condition of various organs of the body, produced by the deposit of an albuminous substance, giving a blue color with iodine and sulphuric acid; -- called also waxy or lardaceous degeneration.