verb

1. To restrain within boundaries; to limit; to confine

   “After suffering diahrroea, the patient was restricted to a diet of rice, cold meat, and yoghurt.”

2. (specifically) To consider (a function) as defined on a subset of its original domain.

Synonyms: bound, circumscribe, coerce, curb, limit, repress, restrain, withstrain

adjective

1. Serving to restrict