ATHETOSIS

(Lat.), n. f. A®th(a%th)-e?t-o’si2s, Gen., a the to’seos (-sis). From äéeros (from a priv., and 7«8évau, to bring into pesuony without fixed position (see also -osis*), Fr., athétose. er., A the tose. It., atetosi. Sp., atetosis. Syn.: Hammond's disease. An affection of the nervous system described by W. A. Hammond in 1871 and considered by him to be due to degenerative changes in the brain and to be distinct from post-hemiplegic chorea, with which it has been confounded. It is characterized by involuntary movements of the fingers and toes, usually of one side only, of a slow, ap[;n.renlly determinate, systematic, and uniform character, with a tendency to distortion; often preceded and accompanied by other symptoms of cerebral disease, especially epileptic seizures and impairment of the intellect, and attacking middle-aged men of intemperate habits. In a case observed by S. Ringer, lesions of tbe getic thalamus, the corpus striatum, and adjacent parts were found after death. [A, 394.] ATIIIN (Ar.), n. The Antirrhinum. [L, 105.]