biodynamicsPronunciation: /ˌbʌɪə(ʊ)dʌɪˈnamɪks/Definition of biodynamics noun [treated as singular] 1the study of physical motion or dynamics in living systems. 2a method of organic farming that incorporates certain astrological and spiritual principles and practices. Derivatives biodynamic adjective biodynamics in other Oxford dictionaries Definition of biodynamics in the US English dictionary