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Toroid vs Undefined - What's the difference?

toroid | undefined |

As a noun toroid

is (mathematics) a surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane.

As an adjective undefined is

lacking a definition or value.

toroid

English

(wikipedia toroid)

Noun

(en noun)
  • (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.

    • Quotations

    * 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 0937147087, pp. 27–28

    Related terms

    * toroidal

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined