WordWeb Online

1. The state of being included
    
2. The relation of comprising something
   "he admired the inclusion of so many ideas in such a short work";
   - comprehension
    
3. Any small intracellular body found within another (characteristic of certain diseases)
   "an inclusion in the cytoplasm of the cell";
   - inclusion body, cellular inclusion
    
4. The act of including
    
5. (geology) a foreign substance embedded in mineral or rock; a defect in a precious stone

Derived forms: inclusions

Type of: body, increase, involvement, situation, state of affairs, step-up

Antonym: exclusion

Encyclopedia: Inclusion