‖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 ]
‖n. pl. [ NL., fr. Gr. te`tra- (see Tetra-) + &unr_; power. ] (Bot.) A Linnaean class of plants having six stamens, four of which are longer than the others. [ 1913 Webster ]
n. (Bot.) A plant of the order Tetradynamia. [ 1913 Webster ]
{ } a. (Bot.) Belonging to the order Tetradynamia; having six stamens, four of which are uniformly longer than the others. [ 1913 Webster ]