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hydrometer
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English
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- IPA(key): /haɪˈdɹɑːmɪtɚ/
Audio (Southern England): (file) - Rhymes: -ɒmɪtə(ɹ)
Noun
hydrometer (plural hydrometers)
- An instrument that floats in a liquid and measures its specific gravity on a scale.
- Synonym: areometer
- Coordinate terms: specific gravity bottle, pycnometer
- 1806, Peter Jonas, “Method of Ascertaining the Strength of Spiritous Liquors by Clarke’s Hydrometer”, in The Genuine Art of Gauging Made Easy and Familiar; Exhibiting All the Principal Methods Actually Practised by the Officers of His Majesty’s Revenue of Excise and Customs: [...], London: Printed [by C[harles] Whittingham] for Dring and Fage, […], →OCLC, page 367:
- [E]ach degree of the hydrometer, when at or near proof, is about a quart in a hundred gallons stronger or weaker, as the hydrometer vibrates under or over the silver speck or sight on the index or upper stem; at the intermediate or strong overproofs, is about a pint in ditto; and at the low underproofs is about three pints in ditto.
- 1843, John Holmes Agnew, Eclectic Museum of Foreign Literature, Science and Art:
- On the wall were hanging thermometers, barometers, and hydrometers, and every other sort of ometer, numberless, dusty, and mysterious; […]
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Swedish
Etymology
Noun
hydrometer c
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