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1. Something added to complete, embellish or make perfect
   "a fine wine is a perfect complement to the dinner";
   - accompaniment
    
2. A word or phrase used to complete a grammatical construction
    
3. A complete number or quantity
   "a full complement"
    
4. Number needed to make up a whole force
   "a full complement of workers";
   - full complement
    
5. One of a series of enzymes in the blood serum that are part of the immune response
    
6. Either of two parts that mutually complete each other
    
7. (logic) the opposite of a statement
    
8. (geometry) the angle you need to add to a given angle to make a right angle
    
9. (immunology) one of several blood proteins that work with antibodies during an immune response

1. Make complete or perfect; supply what is wanting or form the complement to
   "I need some pepper to complement the sweet touch in the soup"

Sounds like: compliment

Derived forms: complements, complementing, complemented

Type of: adjunct, balance, construction, count, counterpart, enzyme, equilibrate, equilibrise [Brit], equilibrize, expression, grammatical construction, hands, manpower, men, opposite number, vis-à-vis, work force, workforce

Part of: immune reaction, immune response, immunologic response

Encyclopedia: Complement