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1. Mathematics
a. A surface generated by a closed curve rotating about, but not intersecting or containing, an axis in its own plane.
b. A solid having such a surface.
2. A body having the shape of a toroid.

to·roi′dal (tô-roid′l) adj.


1. (Mathematics) geometry a surface generated by rotating a closed plane curve about a coplanar line that does not intersect the curve
2. (Mathematics) the solid enclosed by such a surface. See also torus
toˈroidal adj


(ˈtɔr ɔɪd, ˈtoʊr-)

1. a surface generated by the revolution of any closed plane curve or contour about an axis lying in its plane.
2. the solid enclosed by such a surface.
[1895–1900; tor (us) + -oid]
to•roi′dal, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.toroid - the doughnut-shaped object enclosed by a torus
solid - a three-dimensional shape
anchor ring, annulus, doughnut, halo, ring - a toroidal shape; "a ring of ships in the harbor"; "a halo of smoke"
2.toroid - a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circletoroid - a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
magnetic core, core - (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories; "each core has three wires passing through it, providing the means to select and detect the contents of each bit"
round shape - a shape that is curved and without sharp angles
References in periodicals archive ?
II-35 Cryogenic Refrigerator II-36 Power Conversion System II-36 Control System II-36 Operation of SMES II-36 Performance Capabilities of SMES II-37 Solenoid Vs Toroid II-37 A Glance at Major Applications of SMES Systems II-37 Power System Applications of SMES Technology II-38 Cost Components of SMES System II-39 Advantages of SMES Vs Other Systems for Energy Storage II-40 System Stability II-40 Power Quality II-41 Load leveling II-41 Drawbacks of SMES II-41 Economic Viability of SMES Systems II-42 Current Efforts in SMES Space II-42 U.
One choke is usually intricate with the use of Toroid magnetic core around the conductors of output phase of the inverter, and in this situation the magnetic field of CM currents are non zero.
For example, included in the functions are RLC filter calculators, a 555 timer configurator, calculators for a variety of voltage regulators and op-amps, and essential tools such as numbering systems converters, Ohm's Law calculator and lookup tables for battery types and sizes, cable colour codings, package sizes, toroid specifications and much more.
62), (64) Bu model toroid stkistirilmastyla ve toroidlerin istiflenmesiyle protamine bagli DNA'nin hasardan korunurken, linker (baglayict) bolgelerin ve histona bagh DNA bolgelerinin endonukleazlarin olusturdugu DNA hasanna maruz kalcligini gostermektedir.
These neutralize the negative charge of DNA and thus make the DNA highly crystalline and a compact toroid (48, 49).
A second instance for custom nozzles is when the sites to be soldered are inside a housing, or surrounded by very low hanging components, such as electrolytic capacitors, a toroid, or power supplies, and as a consequence, a standard-length nozzle simply won't reach or would hit the nitrogen shroud.
To demonstrate the new method, the researchers heated a metallic-glass rod to about 550 degrees C and then shaped it into a toroid in less than 40 milliseconds.
The geometric tire model was described by toroid [1] in earlier works, and the band model was used later [2].
Figure 6 illustrates the best whip antenna positioning between a transmitting device, located at the center of its toroid radiation pattern, and a receiving device located in the right ward direction.
Additions to the Toroid cutting tool line now include 12 new shell mills in ODs from 2" through 8" and offer maximum versatility with four insert geometries- round, square, high-feed, and octagonal.