Rarely used term for a change of any kind in symptoms or course of a disease. ... Origin: G. A passing over, change, fr. Metabaino, to pass over ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
Me·tab'a·sis noun ; plural Metabases . [ New Latin , from Greek ..., from ... to pass over; ... beyond, over + ... to go.] 1. (Rhet.) A transition from one subject to another. 2. (Medicine) Same as Metabola . Found on http://www.encyclo.co.uk/webster/M/54