cloudtop

plural cloudtops

1. The topmost layer of cloud.

   A third ring system was added in March 1979 when Voyager-1 flew past Jupiter and imaged the outer edge of a faint, tenuous ring, 57,000 km above the planet's cloudtops.

   2014, John Westfall, William Sheehan, Celestial Shadows: Eclipses, Transits, and Occultations, page 546

   1 more example

   The rains are only from October to December, and very rarely does the summer cloudtop rise to our level and sweep cool fringes over us, never depositing visible moisture anywhere.

   1932, Robert LeMoyne Barrett, Katharine Ellis Barrett, Cloudtop Mosaics, page 44