-adynamia-

‖n. [ NL. adynamia, fr. Gr. 'adynami`a lack of strength; 'a priv + dy`namis power, strength. ] (Med.) Considerable debility of the vital powers; asthenia. Dunglison. [ 1913 Webster + AS ]

2. Specifically: (Med) Absence of motor power or force. [ AS ]