hy·drom·e·ter | \hī-ˈdrä-mə-tər \

Definition of hydrometer 

: an instrument for determining the specific gravity of a liquid (such as battery acid or an alcohol solution) and hence its strength

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Other Words from hydrometer

hydrometric \ˌhī-drə-ˈme-trik \ adjective

Examples of hydrometer in a Sentence

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At 6 or 7 p.m., Schmitz and his family will check the syrup with a spoon and with a hydrometer — an instrument for measuring sugar content, Schmitz said. Tyler Langan, Milwaukee Journal Sentinel, "Lavern Schmitz makes maple syrup the old-fashioned way," 11 Apr. 2018 That includes tools such as the hydrometer, containers to ferment and age, yeast, preservatives and, of course, the grapes. Carolyn Wilke, sacbee, "What’s next after home brewing? More people are trying home winemaking," 1 Aug. 2017 From scientific gadgets like the hydrometer, used to measure the density of sugar in liquids, to practical concerns like empty bottles, Maryland Homebrew is packed. Kit Waskom Pollard, Howard County Times, "Columbia's Maryland Homebrew has nurtured amateur beer makers for 25 years," 3 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydrometer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hydrometer

1675, in the meaning defined above

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Time Traveler for hydrometer

The first known use of hydrometer was in 1675

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hy·drom·e·ter | \hī-ˈdräm-ət-ər \

Medical Definition of hydrometer 

: an instrument for determining the specific gravity of a liquid (as an alcohol or saline solution) and hence its strength

Other Words from hydrometer

hydrometry \-ə-trē \ noun plural hydrometries

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Britannica.com: Encyclopedia article about hydrometer

Comments on hydrometer

What made you want to look up hydrometer? Please tell us where you read or heard it (including the quote, if possible).


exaggeratedly or childishly emotional

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