👉 Fluid, in its most comprehensive sense, encompasses all the substances that exhibit fluid-like properties, meaning they can flow and adapt to their environment. This includes liquids, gases, and certain colloids or emulsions, which can change their shape and volume while maintaining a continuous substance. Fluid dynamics studies the behavior of these substances under various forces, while fluid mechanics is a branch of physics that focuses on the motion and interaction of fluids. In everyday life, fluid refers to water, air, oil, and other substances that flow easily and can be compressed or expanded. The term also extends to biological fluids like blood and synovial fluid, highlighting the wide-ranging applications and importance of fluid concepts in science, engineering, and natural processes.
