IPA: /ˌhaɪdrəˈstætɪk/
KK: /haɪdroʊˈstætɪk/
Related to the study of fluids that are not moving and the pressure they create or transmit.
The hydrostatic pressure increases with the depth of the water.
Hydrostatic → It is formed from "hydro-" (from Greek "hydor", meaning water) and "static" (from Greek "statikos", meaning standing or stationary). The word "hydrostatic" refers to the study of fluids at rest, particularly the pressure exerted by a fluid in equilibrium.
Think of 'water' ('hydro-') that is 'standing still' ('static') — that's what hydrostatic means, the study of water at rest.