19+ Zenith Definition Astronomy Background. The strongest or most successful period of time. Couture, that zenith of craft, detail and construction, comes closest to approximating art in the most traditional sense.• even at the zenith of my passion for carolyn, i gave no thought to leaving.•
The zenith of something is the time when it is most successful or powerful.
The point in the celestial sphere opposite the nadir. (astronomy) the point in the sky vertically above a given position or observer; In astronomy, the definition of zenith is this: The point in the celestial sphere opposite the nadir.