1. (meteorology) a low-level cloud, generally formless and dark grey in colour, occurring in layers at low altitude (usually below 2400 metres) and usually bringing precipitation

Encyclopedia: Nimbostratus

• artery
• artery of the labyrinth
• artery of the penis bulb
• artery of the vestibule bulb
• artesian
• artesian well
• artful
• artfully
• artfulness
• arthralgia
• arthralgic
• arthritic
• arthritis
• arthro-
• arthrocentesis
• arthrodesis
• arthrogram
• arthrography
• arthromere
• arthromeric
• arthropathy
• arthroplasty
• arthropod
• arthropod family
• arthropod genus