WordWeb Online

1. Determine the essential quality of
   - specify, define, delineate, delimitate
    
2. Be opposite to; of angles and sides, in geometry
   - subtend
    
3. Set, mark, or draw the boundaries of something
   - demarcate, delimitate

Derived forms: delimits, delimiting, delimited

See also: delimitation

Type of: be, circumscribe, confine, limit