Nimbus clouds are pretty much dark grey versions of cumulus clouds. They generally generate precipitation such as rain or snow. They can also produce hail. See the link below.
Well a nimbus cloud is not a cloud. If you are referring to a cumulonimbus cloud than yes. A cumulonimbus cloud is a storm cloud. Clouds that have names that include -nimbus or nimbo- are likely to...
A nimbus cloud comes in the form of dark precipitous cloud. Nimbus is known as cloud or rain storm in the Latin language. The nimbostratus cloud or cumulonimbus cloud are also a part of the nimbus...