the generalization of a cube to four dimensions.

Origin of tesseract

1885–90; < Greek tésser(es) four + aktís ray
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for tesseract

Historical Examples of tesseract

  • A line has one dimension, a square has two, a cube has three, and a tesseract has four.

    Wait for Weight

    Jack McKenty

  • A cube can be unfolded into six squares, and a tesseract unfolds to eight cubes.

    Wait for Weight

    Jack McKenty

  • Something—something like a Klein Bottle—or a tesseract—or maybe both of them together.

    What Rough Beast?

    Jefferson Highe

  • The hypercube or tesseract is described by moving the generating cube in the direction in which the fourth dimension extends.

    The Mystery of Space

    Robert T. Browne

  • When pressure is applied, it folds up into a tesseract so that it takes up less room and relieves the pressure.

    Wait for Weight

    Jack McKenty

Word Origin and History for tesseract

1888, from tessera + Greek aktis "ray" (see actino-).

Online Etymology Dictionary, © 2010 Douglas Harper

tesseract in Science



A four-dimensional hypercube, having sixteen corners. See more at hypercube.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.