from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The four-dimensional equivalent of a cube.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The four-dimensional analogue of a cube; a 4D polytype bounded by eight cubes (in the same way a cube is bounded by six squares).
  • n. Any of various fictional mechanisms that explain extradimensional, superluminal, or time travel outside the geometry of the physical universe.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the four-dimensional analogue of a cube


Greek tessera, neuter pl. of tesseres, four; see tessera + aktīs, ray of light; see actino-.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From tessara- + Ancient Greek ἀκτίς ("ray"). (Wiktionary)


  • It contains four-dimensional equivalents to our familiar three-dimensional geometrical objects-a four-dimensional cube, for example, known as a tesseract, that has sixteen corners and thirty-two edges to a cube's eight and twelve.

    The New York Review of Books

  • There's a theory of extradimensionality that holds that there are parallel universes as little as a mere .1 mm away from our own, but owing to the dimensions of our own universe (that is to say, it is folded over on itself like a sort of endless ribbon - think "tesseract" from "A Wrinkle in Time"), we are billions of light-years away from the next nearest universe, as the crow flies.

    saru-san Diary Entry

  • Despite the fact that various advances made since 1962 in the field of physics make the scientific concept L’Engle uses to facilitate the novel’s events, called a tesseract, virtually impossible, A Wrinkle in Time remains a popular novel among young adults as well as older readers even today.

    100 Greatest Books #30-26 | Fandomania

  • Thus the "four-dimensional cube" receives a name, the "tesseract," and is said to be bounded by cubes.

    The Fourth Dimension Simply Explained

  • For instance, the projection of a cube may be made on to a plane, or even on to a line; similarly, a "tesseract" (the name given to the fourth-dimension figure traced by the motion of a cube) may be projected on three-dimension space, or even a plane.

    The Fourth Dimension Simply Explained

  • Julian: Your desire for a dinghy is merely the tesseract shadow cast by the four-dimensional dinghy itself

    The Market Will Solve

  • In your spacetime version, when you reach this step, you need to grab the center of the structure and do the tesseract twist, wrench it round by about half a rad.

    365 tomorrows » Sam Clough : A New Free Flash Fiction SciFi Story Every Day

  • Log in to Reply tesseract (UID#4004) on October 29th, 2009 at 3: 34 pm

    how the US will split | My[confined]Space

  • Speaking of ways, by the way, there is such a thing as a tesseract.

    Film in Development Based on A Wrinkle in Time | /Film

  • I went over to the computer, entered tesseract UMBC Baltimore 1995, and found the report.

    How Ed Harris and Jeff Steele got Rhee story

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  • A four-dimensional cube. Each face of a three-dimensional cube generates a cube, when moved at right angles to the existing three dimensions (i.e., into time), including the generating cube and concluding cube, for a total of eight cubes. To see a two-dimensional rendering, including fascinating moving images, click here.

    Think of it as a cube that moves through time into the future. Also used as a symbol of transcendent vision.

    March 17, 2007