water column

noun

plural water columns
1
: a vertical expanse of water stretching between the surface and the floor of a body of water
Shallow feeders, sea lions work the top 600 feet of the water column for hake, rock-fish, herring, sardines … and squid, but opportunistically capturing anything that happens by.Downs Matthews
Only a few animals of the water column above would have died and settled into the sediments below during the short time when the mudslide was coalescing into a layer of sediment in the stagnant basin.Stephen Jay Gould
2
: a vertical pipe with valves and spout for delivering water to a locomotive tender

Examples of water column in a Sentence

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Meanwhile, the water column and the surrounding rock pressurizes the reactor to 160 ATM (2,352 psi) without the need for special equipment. New Atlas, 21 Sep. 2025 The water column contained specific layers, with an oxygenated surface above a super-salty, oxygen-free bottom. Ashley Strickland, CNN Money, 19 Sep. 2025 Tsunami waves involve movement of the entire water column from surface to sea floor. Hannah Parry john Feng, MSNBC Newsweek, 18 Sep. 2025 Smooth hammerheads and blacktip sharks spent comparatively more time near the surface, whereas white sharks, spinner sharks, and dusky sharks were active throughout much of the water column. Melissa Cristina Márquez, Forbes.com, 1 Sep. 2025 See All Example Sentences for water column

Word History

First Known Use

1845, in the meaning defined at sense 1

Time Traveler
The first known use of water column was in 1845

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Cite this Entry

“Water column.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20column. Accessed 26 Sep. 2025.

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