Origin: Latin suffix -tion
Summation has 5 different meanings across 1 category:
a concluding summary (as in presenting a case before a law court)
"The lawyer's summation to the jury emphasized that the evidence clearly pointed to the defendant's guilt."
(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
"The researcher observed that although each weak electrical pulse failed to trigger contraction, their rapid summation caused the muscle fibers to fire successfully."
summarization; summary; summing up.
"The professor asked for a brief summation of our research findings before we moved on to the next topic."