toroid (plural toroids)
- (mathematics) A surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane.
- A ring-shaped object whose surface is a torus.
- 1994, The photon belt, a huge torroid [sic] shaped object composed of photon light particles, was first discovered by your scientists in 1961 near the vicinity of the Pleiades by satellite instrumentation. — You are Becoming a Galactic Human, by Virginia Essene and Sheldon Nidel, →ISBN, pp. 27–28
surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
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