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An instrument used to determine specific gravity, especially a sealed, graduated tube, weighted at one end, that sinks in a fluid to a depth used as a measure of the fluid's specific gravity.
hy′dro·met′ric (hī′drə-mĕt′rĭk), hy′dro·met′ri·cal adj.
(Chemistry) an instrument for measuring the relative density of a liquid, usually consisting of a sealed graduated tube with a weighted bulb on one end, the relative density being indicated by the length of the unsubmerged stem
hydrometric, ˌhydroˈmetrical adj
hy•drom•e•ter(haɪˈdrɒm ɪ tər)
an instrument for determining the specific gravity of a liquid, commonly consisting of a graduated tube weighted to float upright in the liquid.
hy•dro•met•ric (ˌhaɪ drəˈmɛ trɪk) hy`dro•met′ri•cal, adj.
An instrument used to measure the density of a liquid as compared to that of water. Hydrometers consist of a calibrated glass tube ending in a weighted glass sphere that makes the tube stand upright. The lower the density of the liquid, the deeper the tube sinks.
an instrument for measuring the specific gravity of a liquid.See also: Instruments
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|Noun||1.||hydrometer - a measuring instrument for determining the specific gravity of a liquid or solid|
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
salinometer - a hydrometer that determines the concentration of salt solutions by measuring their density