summation, summing up, rundown -- (a concluding summary (as in presenting a case before a law court))
summation -- ((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)
sum, summation, sum total -- (the final aggregate; "the sum of all our troubles did not equal the misery they suffered")
summation, addition, plus -- (the arithmetic operation of summing; calculating the sum of two or more numbers; "the summation of four and three gives seven"; "four plus three equals seven")