from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A high-altitude cloud composed of a series of small, regularly arranged cloudlets in the form of ripples or grains.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A principal high-level cloud type appearing as a thin, white patch of cloud without shadows, composed of very small droplets in the form of grains or ripples. The elements may be merged or separate, and more or less regularly arranged; they subtend an angle of less than 1° when observed at an angle of more than 30° above the horizon. Holes or rifts often occur in a sheet of cirrocumulus. Abbreviated Cc.
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