extremum

On the graph, the extremum is the point where the line stops rising and begins to fall.

用法提示：名词 extremum 表示曲线上的极值点，这里指最高点。

The extrema of the temperature readings were 12°C and 34°C.

用法提示：复数 extrema 表示一组数据中的最大和最小值。

In this dataset, the extremum is the value farthest from the average.

用法提示：名词 extremum 指距中间（平均值）最远的点或数值。