Circumscription (noun)

1. The act of enclosing or surrounding something, or the state of being enclosed or surrounded.
2. A limiting or defining factor, especially one that restricts the scope or freedom of action of something.

Origin:

Late 16th century: from latin circumscriptio(n-), from circumscribere 'enclose within limits'.

Examples:

1. The circumscription of the park by a fence prevented visitors from accessing the wildlife habitat.
2. The circumscription of the city by the river was a major factor in its development as a port.
3. The circumscription of the patient's mobility by the cast was a significant inconvenience.
4. The circumscription of the company by the regulations was a challenge for its growth and expansion.
5. The circumscription of the budget by the government was a major concern for the project.