hydrostatics
noun
hy·dro·stat·ics ˌhī-drə-ˈsta-tiks 
plural in form but singular in construction
: a branch of physics that deals with the characteristics of fluids at rest and especially with the pressure in a fluid or exerted by a fluid on an immersed body compare hydrodynamics
Word History
First Known Use
1660, in the meaning defined above
Medical Definition
hydrostatics
noun, plural in form but singular in construction
hy·dro·stat·ics -iks
: a branch of physics that deals with the characteristics of fluids at rest and especially with the pressure in a fluid or exerted by a fluid on an immersed body compare hydrodynamics