Force field

A force field is a volume of space in which objects are subjected to physical force depending on their position in the space. For example, massive objects such as planets create a gravity force field around them that pulls other matter and energy toward them. Similarly, magnets apply force to ferrous metal objects or charged objects around them. Such fields diminish in magnitude as distance to the source increases.

In Science Fiction

Force fields as shields

In sci-fi, shields are sometimes referred to as "force fields," and the shield often acts like a solid barrier instead a proper volumetric effect.