has part
composed primarily of
liquid water
water ice
cloud
water droplet
water-based cloud
cloud mass
On Earth clouds are formed by the saturation of air in the homosphere when air cools or gains water vapor. Note that this class describes clouds as countable objects, rather than 'cloud material'. It also refers only to clouds made up of a water-based material.
envoAtmo
A cloud which is primarily composed of water-based aerosols.