1. 总结;概要;概括
A summation is a summary of what someone has said or done.

1. the arithmetic operation of summing
calculating the sum of two or more numbers

e.g. the summation of four and three gives seven
four plus three equals seven

Synonym: additionplus

2. a concluding summary (as in presenting a case before a law court)

Synonym: summing uprundown

3. the final aggregate

e.g. the sum of all our troubles did not equal the misery they suffered

Synonym: sumsum total

4. (physiology) the process whereby multiple stimuli can produce a response (in a muscle or nerve or other part) that one stimulus alone does not produce