condensation trail,
contrail an artificial cloud created by an aircraft; caused either by condensation due to the reduction in air pressure above the wing surface or by water vapor in the engine exhaust
cloud -
suspicion affecting your reputation; "after that mistake he was under a cloud"
suspicion being of a suspicious nature; "his suspiciousness destroyed his marriage"
cloud -
out of touch with reality; "his head was in the clouds"
cloud -
a cause of worry or gloom or trouble; "the only cloud on the horizon was the possibility of dissent by the French"
cloud -
a group of many things in the air or on the ground; "a swarm of insects obscured the light"; "clouds of blossoms"; "it discharged a cloud of spores"
group,
grouping any number of entities (members) considered as a unit
Verb
cloud -
billow up in the form of a cloud; "The smoke clouded above the houses"
billow,
wallow rise and move, as in waves or billows; "The army surged forward"
cloud -
make milky or dull; "The chemical clouded the liquid to which it was added"
dull make less lively or vigorous; "Middle age dulled her appetite for travel"
cloud -
make less clear; "the stroke clouded memories of her youth"
modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"
cloud -
make gloomy or depressed; "Their faces were clouded with sadness"
A cloud is a visible mass of droplets of water or frozen crystals suspended in the atmosphere above the surface of the Earth or another planetary body. A cloud is also a visible mass attracted by gravity, such as masses of material in space called interstellar clouds and nebulae. Clouds are studied in the nephology or cloud physics branch of meteorology.
OmegaWiki Dictionary
Ω
cloud Suspensions of minute water droplets or ice crystals produced by the condensation of water vapour.