[in sing.]the highest point reached by a celestial or other object 最高点,顶点,顶峰 the sun was well past the zenith. 太阳早已过了最高点。 the missile reached its zenith and fell. 导弹到达最高点后落下。 ■the point in the sky or celestial sphere directly above an observer. The opposite of nadir 天顶。 与 nadir 相对 ■the time at which something is most powerful or successful 极盛时期,登峰造极时期 in 1977, punk was at its zenith. 1977年,“朋客”摇滚乐处于鼎盛时期。
派生 zenithal adjective 语源
late Middle English: from Old French or medieval Latin cenit, based on Arabic samt (ar-ra's) 'path (over the head')