a mass of water or ice particles visible in the sky, usually white or grey, from which rain or snow falls when the particles coagulate

any collection of particles visible in the air, esp of smoke or dust

a large number of insects or other small animals in flight

something that darkens, threatens, or carries gloom

a cloudlike blemish in a transparent stone

of or relating to cloud computing

to make or become cloudy, overcast, or indistinct

to make obscure; darken

to confuse or impair

to make or become gloomy or depressed

to place under or render liable to suspicion or disgrace

to render (liquids) milky or dull or (of liquids) to become milky or dull

to become or render mottled or variegated