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hydrometer

[ hahy-drom-i-ter ]
/ haɪˈdrɒm ɪ tər /
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noun
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.
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Origin of hydrometer

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

OTHER WORDS FROM hydrometer

hy·dro·met·ric [hahy-druh-me-trik], /ˌhaɪ drəˈmɛ trɪk/, hy·dro·met·ri·cal, adjectivehy·drom·e·try, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use hydrometer in a sentence

British Dictionary definitions for hydrometer

hydrometer
/ (haɪˈdrɒmɪtə) /

noun
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

Derived forms of hydrometer

hydrometric (ˌhaɪdrəʊˈmɛtrɪk) or hydrometrical, adjectivehydrometrically, adverbhydrometry, noun
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

Medical definitions for hydrometer

hydrometer
[ hī-drŏmĭ-tər ]

n.
An instrument used to determine specific gravity, especially a sealed graduated tube, weighted at one end, that sinks in a fluid to a depth indicating the fluid's specific gravity.gravimeter

Other words from hydrometer

hy′dro•metric (hī′drə-mĕtrĭk) adj.hy•drome•try n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for hydrometer

hydrometer
[ hī-drŏmĭ-tər ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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