toroid

Noun
  1. is a type of: solid - a three-dimensional shape
    subtypes: anchor ring, annulus, doughnut, halo, ring - a toroidal shape
  2. is a type of: round shape - a shape that is curved and without sharp angles
    subtypes: core, magnetic core - (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories
    same as: torus

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