tesseract
English
editEtymology
editFrom tessara (“four”) + Ancient Greek ἀκτίς (aktís, “ray”).
Noun
edittesseract (plural tesseracts)
 (mathematics, geometry) The fourdimensional analogue of a cube; a 4D polytope bounded by eight cubes (analogously to the way a cube is bounded by six squares).
 1906, Charles Howard Hinton, The Fourth Dimension, S. Sonnenschein & Company, page 239:
 Hence the cube determined by these axes is the face of the tesseract which we now have before us.
 1910, Henry Parker Manning, The Fourth Dimension Simply Explained, Munn, Incorporated, page 93:
 […] then it would trace out a higher cube, or tesseract, and each of the six surrounding cubes, carried on in the same motion, would trace tesseracts also, […] .
 (science fiction) Any of various fictional mechanisms that explain extradimensional, superluminal, or time travel outside the geometry of the physical universe.
 1962, Madeleine L'Engle, A Wrinkle in Time, published 2019, unnumbered page:
 "I shall just sit down for a moment and pop on my boots and then I'll be on my way. Speaking of ways, pet, by the way, there is such a thing as a tesseract."
Synonyms
edit (analogue of a cube): fourdimensional hypercube, 4cube, 8cell, octachoron, tetracube
Hypernyms
editDerived terms
editRelated terms
editTranslations
editfourdimensional analogue of a cube

Further reading
edit Tesseract on Wikipedia.Wikipedia
 Tesseract (disambiguation) on Wikipedia.Wikipedia
 Tesseract on Wolfram MathWorld