- an applied science dealing with the basic principles of gaseous and liquid matter.
Compare fluid dynamics.
Origin of fluid mechanics
First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- The scientific study of the mechanical properties of fluids, especially their behavior when subject to internal and external forces. Compare aerodynamics hydrodynamics.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.