forming or relating to the most important or exciting point in a story or situation, especially when this happens near the end

The film ends with a climactic battle scene. 电影的高潮是结尾处的战斗场面。

The third movement of the symphony ends in a climactic crescendo (= has a loud and exciting ending). 这部交响曲的第三乐章以高潮渐强结束（结尾处乐声响亮、激情澎湃）。