curl (n.)
- arc
- arch
- bend
- bow
- catenary
- caustic
- circle
- cirrus
- coil
- corkscrew
- crimp
- crisp
- crook
- curlicue
- curve
- dome
- ellipse
- festoon
- flex
- frizz
- gyre
- helix
- hook
- hump
- hunch
- hyperbola
- kink
- lock
- loop
- parabola
- ponytail
- reflex
- ringlet
- roll
- round
- sag
- screw
- scroll
- sinus
- spiral
- swag
- sweep
- swirl
- tendril
- tracery
- turn
- twine
- twirl
- twist
- vault
- volute
- volution
- vortex
- whirl
- whorl
- wind