hydraulic fluid
Americannoun
Etymology
Origin of hydraulic fluid
First recorded in 1940–45
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.
Airbus and Boeing, the two biggest aircraft manufacturers, have acknowledged that malfunctions can lead to oil and hydraulic fluid leaking into the engines or power units and vaporizing at extreme heat.
From The Wall Street Journal ● Sep. 14, 2025
Instead of regular hydraulic fluid, food-grade vegetable oil fills the hydraulic cylinders powering the “O” lifts — so they don’t contaminate the water in case of a leak.
From Los Angeles Times ● Nov. 29, 2023
Investigators said Friday they found hydraulic fluid leaking from a hose in the landing gear system of a FedEx plane that was forced to make an emergency landing this month in Chattanooga, Tennessee.
From Seattle Times ● Oct. 20, 2023
René Descartes believed that animal spirits flowed from the brain through hollow nerves and inflated the muscles, just as hydraulic fluid traveled through machines in the royal gardens at Saint-Germain.
From Scientific American ● Apr. 9, 2022
This would produce changes in the pressure of the hydraulic fluid by affecting the kinetic energy of the fluid's atoms.
From Tom Swift and The Visitor from Planet X by Appleton, Victor [pseud.]
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.
