The Collaborative International Dictionary of English v.0.48:
Hepatitis \Hep`a*ti"tis\, n. [NL., fr. Gr. ?, ?, liver + -itis.] (Med.) Inflammation of the liver. [1913 Webster]WordNet (r) 3.0 (2006):
hepatitis n 1: inflammation of the liver caused by a virus or a toxin