A significant part of aeronautical science is a branch of dynamics called aerodynamics, which deals with the motion of air and the way that it interacts with objects in motion, such as an aircraft.
When you pour a liquid from one container to another, the liquid takes the shape of the container. The volume of the liquid is the same. The properties that solids and liquids share are that they both have definite volume.
2 adj A liquid substance is in the form of a liquid rather than being solid or a gas. Wash in warm water with liquid detergent., ...liquid nitrogen..., Fats are solid at room temperature, and oil is liquid at room temperature. 3 adj Liquid assets are the things that a person or company owns which can be quickly turned into cash if necessary. (BUSINESS).