curve, curved shape - the trace of a point whose direction of motion changes

double helix - a pair of parallel helices intertwined about a common axis; "the structure of the DNA molecule is a double helix"

hank - a coil of rope or wool or yarn

structure, construction - a thing constructed; a complex construction or entity; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons"

mollusk genus - a genus of mollusks

family Helicidae, Helicidae - land snails including the common edible snail and some pests

edible snail, Helix pomatia - one of the chief edible snails

garden snail - any of several inedible snails of the genus Helix; often destructive pests

brown snail, Helix aspersa - serious garden pest having a brown shell with paler zigzag markings; nearly cosmopolitan in distribution

Helix hortensis - a kind of garden snail