toroidal
Shaped like doughnuts
Toroidal describes the shape of a torus—a donut or inner tube, a ring with a hole through its center.
The term appears in mathematics, physics, and engineering: toroidal transformers, toroidal magnetic fields.
Fusion reactors often use toroidal chambers to contain plasma.
Anything ring-shaped with a hollow center can be called toroidal.
Ring-shaped fried pastry
- bagelBoiled, then baked roll
- bundtRing-shaped fluted cake
- crullerTwisted fried dough ring
- glazedCoated with shiny finish
frosted · sprinkles · ring-cake · old-fashioned · baked · deep-fried · savarin
Region between two circles
- cross-sectionView through interior
- genusTaxonomic rank above species
- manifoldMany and various
- surfaceOutermost boundary layer
revolution · volume · curvature · axisymmetric · parametrization · embedding · orientable · Euclidean
Coil storing magnetic energy
- transformerVoltage-altering electrical device
- coilWound circular arrangement
- windingCurving repeatedly, sinuous
- coreCentral essential portion
ferrite · inductance · choke · magnetic · electromagnetic · solenoid · impedance · resonance
Taxonomic rank above species
- knotTied rope fastening
- manifoldMany and various
- embeddingPlacing within surrounding mass
- orientableHaving distinguishable sides
deformation · loop · surface · Möbius · punctured · connected · boundary
Plasma confinement device
- plasmaElectrified matter state
- confinementState of being restricted
- reactorControlled fission apparatus
- fusionJoining into unity
instability · heating · energy · experimental · compact · inertial · deuterium
Movement through a system
- flowUnbroken forward movement
- fluidSubstance that flows
- rotatingTurning on an axis
- spinningRevolving around an axis
self-sustaining · turbulence · wake · jet · propulsion · dolphin · Reynolds
doughnut
Ring-shaped fried pastry
glazed · frosted · sprinkles · ring-cake · old-fashioned · baked · deep-fried · savarin
annulus
Region between two circles
- cross-sectionView through interior
- genusTaxonomic rank above species
- manifoldMany and various
surface · revolution · volume · curvature · axisymmetric · parametrization · embedding · orientable · Euclidean · spherical
inductor
Coil storing magnetic energy
- transformerVoltage-altering electrical device
- coilWound circular arrangement
- windingCurving repeatedly, sinuous
core · ferrite · inductance · choke · magnetic · electromagnetic · solenoid · impedance · resonance · copper
genus
Taxonomic rank above species
orientable · deformation · loop · surface · Möbius · punctured · connected · boundary
tokamak
Plasma confinement device
- plasmaElectrified matter state
- confinementState of being restricted
- reactorControlled fission apparatus
fusion · instability · heating · energy · experimental · compact · inertial · deuterium
circulation
Movement through a system
spinning · self-sustaining · turbulence · wake · jet · propulsion · dolphin · Reynolds
- shape propertiesconvex, concave, symmetric, regular, irregular
- topologymanifolds, compactness, neighborhoods, connectedness, tori
- Antennasdipole, monopole, helical, array, reflector
- lenseszoom lens, multifocal, prime lens, progressive, single vision
- coordinateslatitude, longitude, coordinates, lat, long
- transformerstransformer, Optimus Prime, Megatron, power transformer, Starscream