biodynamicbi‧ody‧nam‧ic /ˌbaɪəʊdaɪˈnæmɪk $ ˌbaɪoʊ-/ adjectivebiodynamic farming and gardening is a type of organic farming and gardening based on a spiritual view of nature in which plants, animals, and soil are considered to be a system working together—biodynamics noun [uncountable]