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/haɪˈdɹɑːmɪtɚ/ · noun
An instrument that floats in a liquid and measures its specific gravity on a scale..
[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.
On the wall were hanging thermometers, barometers, and hydrometers, and every other sort of ometer, numberless, dusty, and mysterious; […]
Use hydrometer when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Hydrometer means An instrument that floats in a liquid and measures its specific gravity on a scale..
Common synonyms include areometer, gravimeter.
The opposite depends on the specific sense.
[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.
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