sum.ma.tion

summation的音标和读音：
DJ音标发音： []
KK音标发音： []

summation的词性：
n.（名词）

1. The act or process of adding; addition.
求和：求和的行为或过程；求和

2. A sum or an aggregate.
合计或总计

3. A concluding part of a speech or an argument containing a summary of principal points, especially of a case before a court of law.
总结：讲话或论证的结论部分，包括要点的总结，尤指法庭上辩论的总结

4. Physiology 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.
【生理学】 积累：通过多个或重复的刺激诱导产生神经、肌肉或其他一种刺激不能产生反应的部分的过程

summation的词源：

5. New Latin summti summtin-
现代拉丁语 summti summtin-

6. from Late Latin summtus [past participle of] summre [to sum up]
源自 后期拉丁语 summtus [] summre的过去分词 [总结，概括]

7. from Latin summa [sum] * see sum
源自 拉丁语 summa [总额，总计] *参见 sum