hydrostatic adjective. [hʌɪdrǝ(ʊ)'statɪk] L17.
[Prob. from Greek hudrostatēs hydrostatic balance, (in medieval Greek) fire-engine, from hudro- HYDRO- + STATIC.]
1. Pertaining to the equilibrium of liquids or the pressure of stationary liquids; pertaining to hydrostatics. L17.
■ B. Stewart The hydrostatic pressure of the column of mercury.

2. Involving or employing the pressure of water or other liquid. M18.
hydrostatic balance: for finding the relative density of an object by weighing it in water. hydrostatic press = hydraulic press s.v. HYDRAULIC adjective.

■ hydrostatical adjective (now rare) = HYDROSTATIC M17.

■ hydrostatically adverb by hydrostatic means; as regards hydrostatics: M17.

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