hydrometer

noun

hy·​drom·​e·​ter hī-ˈdrä-mə-tər 

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

hydrometric

ˌhī-drə-ˈme-trik 

adjective

Examples of hydrometer in a Sentence

Recent Examples on the Web

The hydrometer shattered, filling the brew with glass and mercury beads. —Byjasmine Li, Fortune, 10 Feb. 2024

The first, the hydrometer, was designed to measure liquids and could be used for various purposes, including measuring medicines. —Emilie Le Beau Lucchesi, Discover Magazine, 7 June 2023

If not, it can be measured with a tool called a hydrometer. —Dallas News, 12 Jan. 2023

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, 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, 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, 3 May 2017

Word History

First Known Use

1675, in the meaning defined above

Rhymes for hydrometer

• barometer
• bolometer
• chronometer
• geometer
• hygrometer
• kilometer
• micrometer
• odometer
• photometer
• psychrometer
• pycnometer
• pyrometer

Kids Definition

hydrometer

noun

hy·​drom·​e·​ter hī-ˈdräm-ət-ər 

: an instrument for finding out the strength of a liquid (as battery acid or an alcohol solution) by measuring its specific gravity

Medical Definition

hydrometer

noun

hy·​drom·​e·​ter hī-ˈdräm-ət-ər 

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

hydrometry

-ə-trē 

noun

plural hydrometries