hydrodynamic

/ˌhaɪdroʊdaɪˈnæmɪk/
adjective
  1. Relating to the movement of liquids and the forces that affect them, especially in engineering and physics.
    • The boat's hydrodynamic shape helps it move faster through the water.
    • The study of hydrodynamic forces is important for understanding ocean currents.
    • Engineers use hydrodynamic models to design more efficient ship hulls.