a mechanical fastener or component with a helical thread, such as a bolt or a propeller

a device used for measuring or maintaining orientation and angular velocity

any of various marine gastropod mollusks with a spiral shell, including whelks and conches

a spiral pattern or helical line

bolt (male component of nut and bolt)

Oncomelania (a genus of small freshwater snails)

screw; threaded rod

a phylum of spiral-shaped bacteria, including species that cause diseases such as syphilis

the female component of a nut and bolt

a type of spiral-shaped blue-green algae often used as a nutrient-rich dietary supplement

biluochun or pi lo chun, a type of green tea grown in the Dongting Mountain region near Lake Tai, Jiangsu

a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.

nut (female component of nut and bolt)

the linear distance between two corresponding points on adjacent threads of a screw or spiral

a cephalopod mollusk with a characteristic spiral shell, often referred to as a living fossil

a cylindrical coil of wire acting as a magnet when carrying electric current

a conch shell used as a horn for signaling or making music

nut (female component of nut and bolt)

a hairstyle wound into a spiral coil resembling a conch shell

nut (female component of nut and bolt)

Xiluo or Hsilo town in Yunlin county, Taiwan

giant Amazon snail (Ampullaria gigas spix) that has devastated rice paddies in China since its introduction in the 1980s

spiral shape

spiral surface

cholera (with dehydration)

micrometer screw gauge; micrometer

fusilli (corkscrew-shaped pasta)

moon snail (sea snail of the Naticidae family)

fusilli (pasta)

a "screw that never rusts" – metaphor used in CCP propaganda to praise loyal, selfless contributors, famously applied to model worker Lei Feng

snail poison; molluscicide

square headed nut

Helicobacter pylori (stomach bacterium)

Helicobacter pylori (stomach bacterium)