hydrostatics

n. study of liquids at rest (Physics)

Fluid statics (also called hydrostatics) is the science of fluids at rest, and is a sub-field within fluid mechanics. The term usually refers to the mathematical treatment of the subject. It embraces the study of the conditions under which fluids are at rest in stable  equilibrium. The use of fluid to do work is called hydraulics, and the science of fluids in motion is fluid dynamics.
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Noun
1. study of the mechanical properties of fluids that are not in motion
(hypernym) fluid mechanics, hydraulics
(class) Archimedes' principle, law of Archimedes

(n.)
The branch of science which relates to the pressure and equilibrium of nonelastic fluids, as water, mercury, etc.; the principles of statics applied to water and other liquids.
  

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hydrostatics
n.
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