The state of matter which has a definite volume but no definite shape is a liquid.

Definition of a Liquid
A liquid is a state of matter in which the particles are close together, but not arranged in a fixed pattern. The particles in a liquid have more energy than those in a solid, so they can move around each other more freely. This allows a liquid to take the shape of its container, but it has a definite volume because the particles are still close together.

Properties of a Liquid
Some properties of a liquid include:

- Definite volume: A liquid has a fixed amount of space it occupies.
- No definite shape: A liquid can take the shape of its container.
- Incompressibility: A liquid cannot be easily compressed because the particles are already close together.
- Surface tension: Liquids have a tendency to minimize their surface area, which creates a surface tension that allows objects to float on the surface of a liquid.
- Viscosity: A measure of a liquid's resistance to flow. High viscosity liquids, like honey or molasses, flow slowly, while low viscosity liquids, like water, flow more easily.

Examples of Liquids
Some common examples of liquids include:

- Water
- Milk
- Juice
- Oil
- Alcohol
- Gasoline

Conclusion
In summary, a liquid is a state of matter that has a definite volume, but no definite shape. Liquids have properties such as incompressibility, surface tension, and viscosity. Examples of liquids include water, milk, and oil.