Surroundings

Source: Wikipedia, the free encyclopedia.

Surroundings, or environs is an area around a given physical or geographical

place. The exact definition depends on the field. Surroundings can also be used in geography
(when it is more precisely known as vicinity, or vicinage) and mathematics, as well as philosophy, with the literal or metaphorically extended definition.

In

thermodynamic system. Often, the simplifying assumptions are that energy and matter
may move freely within the surroundings, and that the surroundings have a uniform composition.

See also

The dictionary definition of surroundings at Wiktionary