Noun | 1. | ![]() 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 shape of the DNA molecule is a double helix" |
2. | ![]() hank - a coil of rope or wool or yarn structure, construction - a thing constructed; a complex entity constructed of many parts; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons" | |
3. | Helix - type genus of the family Helicidae 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 |