A nimbus cloud is a type of cloud that is associated with precipitation. It is typically dark and thick, indicating that it contains a large amount of moisture. Nimbus clouds can produce rain, snow, or other forms of precipitation, making them important for weather patterns. The term "nimbus" comes from the Latin word for "rain." These clouds are often seen in the sky during stormy weather. Common types of nimbus clouds include nimbostratus and cumulonimbus, both of which are known for their ability to generate significant rainfall and thunderstorms.