aeromechanics

noun

aero·​me·​chan·​ics ˌer-ō-mə-ˈka-niks 

plural in form but singular or plural in construction

: mechanics that deals with the equilibrium and motion of gases and of solid bodies immersed in them

Word History

Etymology

probably borrowed from German Aeromechanik, from aero- aero- + Mechanik mechanics

First Known Use

circa 1909, in the meaning defined above