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hydrometer

[ hahy-drom-i-ter ]

noun

  1. an instrument for determining the specific gravity of a liquid, commonly consisting of a graduated tube weighted to float upright in the liquid whose specific gravity is being measured.


hydrometer

/ ˌhaɪdrəʊˈmɛtrɪk; haɪˈdrɒmɪtə /

noun

  1. 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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


hydrometer

/ hī-drŏmĭ-tər /

  1. 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 when placed in a liquid. The lower the density of the liquid, the deeper the tube sinks.


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Derived Forms

  • hydrometric, adjective
  • hyˈdrometry, noun
  • ˌhydroˈmetrically, adverb
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Other Words From

  • hy·dro·met·ric [hahy-dr, uh, -, me, -trik], hydro·metri·cal adjective
  • hy·drome·try noun
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Word History and Origins

Origin of hydrometer1

First recorded in 1665–75; hydro- 1 + -meter
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Example Sentences

The greater the amount of solid matter dissolved in the sirup, the higher will be hydrometer float.

For determining the density of sirup, a sirup gauge, or hydrometer, will be found useful.

Regardless of the kind of juice, the hydrometer should register 25 degrees for perfect jelly.

It should be wider than the hydrometer, and always filled to the brim.

The temperature is taken, and the hydrometer is immersed in the fluid.

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hydrometeorologyhydromorphic