WordWeb Online

1. A principle that limits the extent of something
   "I am willing to accept certain restrictions on my movements";
   - limitation
    
2. An act of limiting or restricting (as by regulation)
   - limitation
    
3. The act of keeping something within specified bounds (by force if necessary)
   "the restriction of the infection to a focal area";
   - confinement

Derived forms: restrictions

Type of: regulating, regulation, restraint, rule

Encyclopedia: Restriction