Noun
a cumulus cloud at an intermediate altitude of 2 or 3 miles
Source: WordNetAnother variety, duplicatus (closely spaced layers of the same type, one above the other), is sometimes found with cirrus of both the fibratus and uncinus species, and with altocumulus and stratocumulus of the species stratiformis and lenticularis. Source: Internet
An example of this would be a layer of altocumulus stratiformis arranged in seemingly converging rows separated by small breaks. Source: Internet
Layered altocumulus and cirrocumulus are physically more closely related to stratocumulus than to cumulus heaps. Source: Internet
Cirro-stratocumulus is therefore abbreviated to cirrocumulus and alto-stratocumulus is shortened to altocumulus. Source: Internet
It is occasionally seen with cirrocumulus and altocumulus of the species stratiformis, castellanus, and floccus, and with stratocumulus of the species stratiformis and castellanus. Source: Internet
All three are associated with the stratiformis species of altocumulus and stratocumulus. Source: Internet