Fluid Definition

Chemistry Glossary Definition of Fluid

liquid being poured into cup

Definition of Fluid: 

A fluid is any substance that flows or deforms under an applied shear stress. Fluids comprise a subset of the states of matter and include liquids, gases, and plasma.


All liquids and gases are fluids (air, water, oil)

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Your Citation
Helmenstine, Anne Marie, Ph.D. "Fluid Definition." ThoughtCo, Feb. 8, 2017, thoughtco.com/definition-of-fluid-604466. Helmenstine, Anne Marie, Ph.D. (2017, February 8). Fluid Definition. Retrieved from https://www.thoughtco.com/definition-of-fluid-604466 Helmenstine, Anne Marie, Ph.D. "Fluid Definition." ThoughtCo. https://www.thoughtco.com/definition-of-fluid-604466 (accessed April 22, 2018).