1. The arithmetic operation of summing; calculating the sum of two or more numbers
   "the summation of four and three gives seven";
   - addition
    
2. The final amount obtained by adding everything together
   "The summation of all expenses came to $5000";
   - sum, sum total
    
3. (law) a concluding summary (as in presenting a case before a law court)
   "The judge's summation helped clarify the key points of the case for the jury";
   - summing up, rundown
    
4. (physiology) the process whereby multiple stimuli can produce a response (in a muscle, nerve or other part) that one stimulus alone does not produce
   "Temporal summation is crucial for the functioning of neurons"

Derived forms: summations

Type of: accumulation, aggregation, arithmetic operation, assemblage, biological process, collection, organic process, summary, sum-up, wrap-up

Encyclopedia: Summation