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The pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity. Hydrostatic pressure increases in proportion to depth measured from the surface because of the increasing weight of fluid exerting downward force from above. *** ## Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. > “The concept of putting it down at the bottom of the sea floor, deep enough where that hydrostatic pressure can drive the reverse-osmosis process — there’s certainly merit to that,” Donovan said. > > From [Los Angeles Times](https://www.latimes.com/environment/story/2023-09-19/are-seafloor-desalination-pods-the-answer-to-drought) • Sep. 19, 2023 > > [](https://www.latimes.com/environment/story/2023-09-19/are-seafloor-desalination-pods-the-answer-to-drought) > If the Titan were stuck on the ocean floor, a rescue effort would face even greater challenges due to extreme hydrostatic pressure and total darkness on the sea floor more than 2 miles deep. > > From [Reuters](https://www.reuters.com/world/searchers-detect-undersea-sounds-hunt-missing-titanic-sub-2023-06-21/) • Jun. 21, 2023 > > [](https://www.reuters.com/world/searchers-detect-undersea-sounds-hunt-missing-titanic-sub-2023-06-21/) > The water table will generally mirror surface topography, though more subdued because hydrostatic pressure is equal to atmospheric pressure along the surface of the water table. > > From [Textbooks](https://geo.libretexts.org/Bookshelves/Geology/Book%3A_An_Introduction_to_Geology_\(Johnson_Affolter_Inkenbrandt_and_Mosher\)) • Jan. 1, 2017 > > [](https://geo.libretexts.org/Bookshelves/Geology/Book%3A_An_Introduction_to_Geology_\(Johnson_Affolter_Inkenbrandt_and_Mosher\)) > As fluid exits a capillary and moves into tissues, the hydrostatic pressure in the interstitial fluid correspondingly rises. > > From [Textbooks](https://openstax.org/details/books/anatomy-and-physiology) • Jun. 19, 2013 > > [](https://openstax.org/details/books/anatomy-and-physiology) > Applying this rule to the case of 20 cubic meters under a hydrostatic pressure of 30 millimeters, we find: 20 � 30 = 600 kilogrammeters. > > From [*Scientific American Supplement, No. 388, June 9, 1883*](https://www.gutenberg.org/ebooks/15417) by Various > > [](https://www.gutenberg.org/ebooks/15417) Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. 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*American* \[hahy-dr*uh*\-**stat**\-ik **presh**\-er\] / ˌhaɪ drəˈstæt ɪk ˈprɛʃ ər / noun ### plural hydrostatic pressures 1. the [pressure](https://www.dictionary.com/browse/pressure) exerted by a liquid at rest. *** hydrostatic pressure *Scientific* / hī′drə-stăt**′**ĭk / 1. The pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity. Hydrostatic pressure increases in proportion to depth measured from the surface because of the increasing weight of fluid exerting downward force from above. *** ## Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. > “The concept of putting it down at the bottom of the sea floor, deep enough where that hydrostatic pressure can drive the reverse-osmosis process — there’s certainly merit to that,” Donovan said. > > From [Los Angeles Times](https://www.latimes.com/environment/story/2023-09-19/are-seafloor-desalination-pods-the-answer-to-drought) • Sep. 19, 2023 > > [](https://www.latimes.com/environment/story/2023-09-19/are-seafloor-desalination-pods-the-answer-to-drought) > If the Titan were stuck on the ocean floor, a rescue effort would face even greater challenges due to extreme hydrostatic pressure and total darkness on the sea floor more than 2 miles deep. > > From [Reuters](https://www.reuters.com/world/searchers-detect-undersea-sounds-hunt-missing-titanic-sub-2023-06-21/) • Jun. 21, 2023 > > [](https://www.reuters.com/world/searchers-detect-undersea-sounds-hunt-missing-titanic-sub-2023-06-21/) > The water table will generally mirror surface topography, though more subdued because hydrostatic pressure is equal to atmospheric pressure along the surface of the water table. > > From [Textbooks](https://geo.libretexts.org/Bookshelves/Geology/Book%3A_An_Introduction_to_Geology_\(Johnson_Affolter_Inkenbrandt_and_Mosher\)) • Jan. 1, 2017 > > [](https://geo.libretexts.org/Bookshelves/Geology/Book%3A_An_Introduction_to_Geology_\(Johnson_Affolter_Inkenbrandt_and_Mosher\)) > As fluid exits a capillary and moves into tissues, the hydrostatic pressure in the interstitial fluid correspondingly rises. > > From [Textbooks](https://openstax.org/details/books/anatomy-and-physiology) • Jun. 19, 2013 > > [](https://openstax.org/details/books/anatomy-and-physiology) > Applying this rule to the case of 20 cubic meters under a hydrostatic pressure of 30 millimeters, we find: 20 � 30 = 600 kilogrammeters. > > From [*Scientific American Supplement, No. 388, June 9, 1883*](https://www.gutenberg.org/ebooks/15417) by Various > > [](https://www.gutenberg.org/ebooks/15417) Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.