| pressure drag | |
| —n | |
| the part of the total drag of a body moving through a gas or liquid caused by the components of the pressures at right angles to the surface of the body | |
| pressure drag
See under drag. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |