| ̷ ̷ ̷ ̷ at hydro- +ˈstad.iks noun plural but usually singular in construction
Etymology: probably from New Latin hydrostatica, from neuter plural of hydrostaticus hydrostatic
: a branch of physics that deals with the characteristics of liquids at rest and especially with the pressure in a liquid or exerted by a liquid on an immersed body — compare hydrodynamics