tesseract

English

A two-dimensional projection of a tesseract.

Etymology

From tessara- + Ancient Greek ἀκτίς (“ray”).

Noun

tesseract (plural tesseracts)

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

Synonyms

• (analogue of a cube): four-dimensional hypercube, 8-cell, octachoron, tetracube

Hypernyms

• hypercube, polytope

Translations

four-dimensional analogue of a cube

• Czech: teserakt (cs) m
• Finnish: tesserakti (fi)

• Icelandic: ferverpill (is) m, fjórvíður teningur (is) m

See also

• Tesseract on Wikipedia.Wikipedia
• Mathworld article on the tesseract