noun.
A principal, low-level cloud type in the form of a graylayer with a rather uniformbase, usually not associated with precipitation, and capable of producing corona phenomena and a weak, uniformluminance; abbreviated St.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a large dark low cloud
Word Usage
"Most likely, it was one of the 10 great species of clouds, beginning with low- altitude cumulus ("cotton-wool puffs"), stratocumulus ("a low layer or patch of cloud") and stratus (a "gray overcast layer")."