Myasthenia gravis (MG) is the most commonly occurring disorder of neuromuscular junction transmission and is characterized by weakness and fatigue of skeletal muscles. It is a T-cell dependent antibody-mediated autoimmune disease. Back to Top.
Definition of tyranny. Tyranny is usually thought of as cruel and oppressive, and it often is, but the original definition of the term was rule by persons who lack legitimacy, whether they be malign or benevolent. Historically, benign tyrannies have tended to be insecure, and to try to maintain their power by becoming increasingly oppressive.
This article is about a political ruler. For other uses, see Tyrant (disambiguation) . A tyrant (Greek ÏÏÏÎ±Î½Î½Î¿Ï, tyrannos), in its modern English usage, is an absolute ruler unrestrained by law or constitution, or one who has usurped legitimate sovereignty.