👉 Fluid, in the context of physics and engineering, refers to a state of matter that is neither solid nor gas but instead exists in a liquid form. It has properties of both liquids and gases, such as taking the shape of its container while maintaining a relatively constant volume. Fluid flows easily under the influence of external forces like gravity or pressure differences, and it has no fixed shape, instead conforming to the form of any container it occupies. This unique state is characterized by high compressibility and viscosity, meaning fluids can be easily compressed and have resistance to flow. Examples of fluids include water, oil, and air.
