aerodynamics aerodynamics /ɛroʊdaɪˈnæmɪks/

noun

1. The branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow  ( aerodynamics , aeromechanics )
   the branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow
   
   

 aerodynamic aerodynamic /ˌɛrəʊdaɪˈnæmɪk/

adjective

1. () (physics) of or relating to aerodynamics  ( aerodynamic )
   (physics) of or relating to aerodynamics
   
2. Designed or arranged to offer the least resistant to fluid flow  ( aerodynamic , flowing , sleek , streamlined )
   designed or arranged to offer the least resistant to fluid flow
    A streamlined convertible
   a streamlined convertible