Synonym: Otto's disease. ... Origin: arthro-+ G. Katadysis, a dipping under, a setting, fr. Dyo, to make sink ... (05 Mar 2000) ... 
Type: Term Pronunciation: ar′thrō-kă-tad′i-sis Definitions: 1. Significant erosion of the concave surface of a joint; results in migration of the convex surface medially.