1927, in the meaning defined above
International Scientific Vocabulary, from Greek hypsos height (akin to Old English ūp up) + International Scientific Vocabulary -meter — more at up
Time Traveler for hypsometer
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Cite this Entry
“Hypsometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hypsometer. Accessed 30 Jun. 2022.
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