What do you mean by 'streamlined shape'?

A "streamlined shape" refers to a design that minimizes resistance to movement through a fluid, such as air or water. This shape typically features smooth, flowing lines and a tapered form that reduces drag and enhances efficiency. Streamlined shapes are commonly found in nature, like fish and birds, and are often emulated in engineering and design to improve performance in vehicles and structures. Overall, the goal is to allow for smoother motion and better energy conservation.