Cirrus Common

usually coiled

"The cirrus clouds drifted across the sky, their thin strands twisting into elegant coils high above us."

a wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles)

"The pilot checked the weather radar and saw that thin, wispy cirrus clouds were drifting above us at eight thousand feet."

a slender flexible animal appendage as on barnacles or crinoids or many insects; often tactile

"The marine biologist carefully examined the delicate cirrus of the barnacle to see if it was retracting when touched."

A tendril.

"The old man's gray beard hung down like a delicate cirrus against his tanned neck."