: an instrument (such as a hydrometer) for measuring the amount of salt in a solution

Word History

Etymology

International Scientific Vocabulary saline + -o- + -meter

First Known Use

1844, in the meaning defined above

Time Traveler
The first known use of salinometer was in 1844

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Cite this Entry

“Salinometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/salinometer. Accessed 7 Jul. 2026.

Medical Definition

: an instrument (as a hydrometer) for measuring the amount of salt in a solution

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