sea level

noun

: the level of the surface of the sea especially at its mean position midway between mean high and low water compare ground level sense 1a

Examples of sea level in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In general, the ambient gas conditions needed to generate lift are similar to the ones inside the Crookes radiometer: well below the air pressure at sea level. Andrew Cunningham, ArsTechnica, 14 Aug. 2025 The existing artificial waterway that ships used to cross the continent from the Atlantic Ocean to the Pacific, the Panama Canal, was not built at sea level on both sides. Shoshi Parks, Popular Science, 14 Aug. 2025 Some reports predict that by 2050, 80% of its land could become uninhabitable if sea levels continue to rise at their current rate. Zoe Whitfield, CNN Money, 12 Aug. 2025 Worsening hurricanes, increasing flooding, sea levels rising, invasive plants and animals spreading, resiliency decreasing and new pressures on even intact natural systems create an ominous future for Florida. Joe Murphy, The Orlando Sentinel, 8 Aug. 2025 See All Example Sentences for sea level

Word History

First Known Use

1806, in the meaning defined above

Time Traveler
The first known use of sea level was in 1806

Browse Nearby Words

Cite this Entry

“Sea level.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20level. Accessed 20 Aug. 2025.

Kids Definition

sea level

noun
: the height of the surface of the sea midway between the average high and low tides

More from Merriam-Webster on sea level

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