a bulbous or billowing white or dark grey cloud associated with rising air currents
Compare cirrus (sense 1), stratus
2. histology
the mass of cells surrounding a recently ovulated egg cell in a Graafian follicle
Word origin
C17: from Latin: mass
Examples of 'cumuli' in a sentence
cumuli
We develop a new approach that resolves cloud area distributions of single-layer shallow cumuli from ground-based observations.
Jessica M. Kleiss, Erin A. Riley, Charles N. Long, Laura D. Riihimaki, Larry K. Berg, Victor R. Morris, Evgueni Kassianov 2018, 'Cloud Area Distributions of Shallow Cumuli: A New Method for Ground-Based Images',Atmospherehttp://www.mdpi.com/2073-4433/9/7/258. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)