nimbus

Looming through the tall windows along the back wall, dark skies were crammed with nimbus clouds.

Radar domes, used for military surveillance, floated like nimbus clouds.

With his bald pate and nimbus of gray, scowling behind spectacles, he had long been a favorite of editorial cartoonists.

All these flat shapes are limned by dark lines — the reverse of the delicate nimbus of light surrounding them in the original.

Even when the music whips up complex, noisy nimbuses of competing motifs, the fast, finely judged changes within the dense activity are preparing you for variations on the weather.