A propulsion device consisting of blades on a central hub, used on ships, aircraft, windmills, and fans.

A group of bacteria characterized by a long, spiral-shaped body and twisting motion; includes the species that cause diseases such as syphilis and Lyme disease.

A type of spiral-shaped blue-green algae rich in protein, vitamins, and minerals; widely cultivated for use as a health food supplement or animal feed.

A style or form that winds or twists like a screw; spiral-shaped

double helix; dual or double spirals

a helix or helical line; a spiral or conchoid shape

a spiral-shaped bacterium, typically found in soil or water, that often moves using flagella

a surface generated by a line rotating and translating along an axis, or resembling a spiral's screw thread

a staircase that winds around a central vertical axis

micrometer screw gauge; micrometer

a shape that twists or circles around a central point like a screw or the shell of a snail

fusilli; corkscrew-shaped pasta

a tool used for gripping and turning bolts or nuts

fusilli pasta; corkscrew pasta

Borrelia; genus of spirochaete bacteria

an infectious disease caused by Leptospira bacteria, often transmitted to humans by water contaminated by animal urine

Borrelia, a genus of bacteria that includes the species responsible for Lyme disease and relapsing fever

Helicobacter pylori, a type of bacterium that can infect the stomach and cause ulcers

Helicobacter pylori; a type of bacterium found in the stomach

a type of jack operated by a screw mechanism, used for lifting heavy loads such things as heavy vehicles

shape that twists or coils around a central point like a screw thread or a snail shell

screw wrench; spanner

a device used on ships or aircraft for propulsion, using the principle of a rotating screw against the resistance of air or water