summation

The act or process of adding; addition.

A sum or aggregate.

A concluding argument after the presentation of a legal case, especially an argument made to a judge or jury by an attorney for a party as to why that party should prevail.

The process by which multiple or repeated stimuli can produce a response in a nerve, muscle, or other part that one stimulus alone cannot produce.

Addition; specifically, the process of finding the sum of a series, or the limit toward which the sum of an infinite series converges; any combination of particular quantities in a total.