noun (used with a singular verb)
- the branch of statics that deals with gases in equilibrium and with gases and bodies in the gases in equilibrium with one another.Compare aerodynamics.
- the science of lighter-than-air aircraft.
noun (functioning as singular)
- the study of gases in equilibrium and bodies held in equilibrium in gasesCompare aerodynamics
- the study of lighter-than-air craft, such as balloons