inviscid

/ɪnˈvɪsɪd/
adjective
  1. Having no viscosity; not sticky or thick; flowing freely without resistance.
    • In physics class, they studied the behavior of an inviscid liquid in a pipe.
    • An inviscid fluid like water flows much faster than honey.
    • The engineer assumed the gas was inviscid to simplify the calculations.
What does "inviscid" mean? | whatsthatwordmean | whatsthatwordmean