1. a type of low, gray cloud that covers the sky and produces steady rain or snow
Usage: meteorology

Examples

• The nimbostratus clouds brought light rain that lasted all day.
• Weather forecasters predicted nimbostratus formation would cause overcast skies.
• The thick nimbostratus layer blocked out the sun completely.
• Pilots avoid flying through nimbostratus clouds due to poor visibility.
• The nimbostratus stretched across the entire horizon like a gray blanket.
• Snow began falling from the nimbostratus clouds overhead.