vedelike tiheduse määramise riist; mõõdab vedeliku tihedust selle järgi, kui sügavale vedelikku ta ujuma jääb
an instrument used to measure the density, or relative density, of a liquid. It usually consists of a glass (or plastic) bulb, weighted at the bottom so that it floats upright, and fitted with a stem carrying a scale. The point on the scale that is level with the surface of the liquid indicates the (relative) density of the liquid.
Hydrometer (for liquid substances)
Sufficiently accurate and quick determinations of density may be obtained by the floating hydrometers, which allow the density of a liquid to be deduced from the depth of immersion by reading a graduated scale.
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Special names are given to it as constructed for particular liquids, as alcoholometer, acidimeter, lactometer, etc.
