aerodynamic

/ˌɛroʊdaɪˈnæmɪk/

Other forms: aerodynamics; aerodynamically

If something is aerodynamic, it's designed to move efficiently through air. If a baseball were square instead of round, it would be much less aerodynamic — and nearly impossible to throw straight.

Race cars, sleek and low to the ground, are more aerodynamic than the family minivan — in other words, their shape puts up much less resistance to the air that flows around them. It's why they can go so fast. Anything that moves smoothly through the air is aerodynamic, from a greyhound to a racing bike to a golf ball. Aerodynamic combines the Greek aero-, "air," and dynamic, "pertaining to mechanical forces."

Definitions of aerodynamic

1. adjective

   of or relating to aerodynamics
2. adjective

   designed to offer the least resistance while moving through air or liquid
   synonyms: flowing, sleek, streamlined

   smooth

   having a surface free from roughness or bumps or ridges or irregularities