n.
Pronunciation: ( ˌ )s ə - ' m ā -sh ə n
Function: noun
Date: 1760
1 : the act or process of forming a sum : ADDITION
2 : SUM , TOTAL
3 : cumulative action or effect especially : the process by which a sequence of stimuli that are individually inadequate to produce a response are cumulatively able to induce a nerve impulse
4 : a final part of an argument reviewing points made and expressing conclusions
– sum · ma · tion · al \ -shn ə l, -sh ə -n ə l \ adjective