cirrus (n.)
- cilium
- cloud
- cobweb
- cocktail
- coil
- corkscrew
- cumulus
- curl
- curlicue
- denier
- fiber
- fibrilla
- filament
- flagellum
- gossamer
- gyre
- hair
- hank
- helix
- kink
- nimbus
- ringlet
- roll
- screw
- scroll
- scud
- skein
- spiral
- strand
- stratus
- suture
- swirl
- tendril
- thread
- thundercloud
- thunderhead
- twirl
- twist
- volute
- volution
- vortex
- web
- whirl
- whorl