Look up toroidal in Wiktionary, the free dictionary.

Toroidal describes something which resembles or relates to a torus or toroid:

• Toroidal coordinates, a three-dimensional orthogonal coordinate system
• Toroidal and poloidal coordinates, directions for a three-dimensional system which follows a circular ring around the surface
• Toroidal graph, a graph whose vertices can be placed on a torus such that no edges cross
• Toroidal grid network, an n-dimensional grid connected circularly in more than one dimension
• Toroidal polyhedron, partition of a toroidal surface into polygons

• Toroidal engine, an internal combustion engine with pistons that rotate inside a ring-shaped cylinder
• Toroidal expansion joint, a metallic assembly consisting of a series of circular tubes used in high pressure applications
• Toroidal inductors and transformers, a type of electrical device using magnetic cores with a ring or donut shape
• Toroidal propeller, a loop-shaped propeller used in aviation and maritime transport
• Toroidal reflector, a reflector whose surface is a section of a torus which has a different focal distance depending on the angle of the mirror

• Toroidal planet, planet in the shape of a toroidal or doughnut shape
• Toroidal ring model in theoretical physics
• Toroidal solenoid, 1946 design for a fusion power device
• Vortex ring, also known as a toroidal vortex; a toroidal flow in fluid mechanics

• Atoroidal
• Torus (disambiguation)

This disambiguation page lists articles associated with the title Toroidal.
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