'myasthenic syndrome' definitions:

Definition of 'myasthenic syndrome'

(from WordNet)
noun
A disease seen in patients with lung cancer and characterized by weakness and fatigue of hip and thigh muscles and an aching back; caused by antibodies directed against the neuromuscular junctions [syn: Lambert-Eaton syndrome, Eaton-Lambert syndrome, myasthenic syndrome, carcinomatous myopathy]