origin: coined in A New Era of Thought (1888) by C.H. Hinton, from the Greek [τέσσερεις ακτίνες] "four rays"
a.k.a. "hypercube", "tetracube", "polytope"; a hexahedron with six equal squares as faces (or a four-dimensional analog of the cube). In a real tesseract, which cannot exist in our three-dimensional space, each edge would be the same length.
➝ examples of:
➀ Variating in shape, a version of the cube is found in Salvador Dalí's Crucifixion (Corpus Hypercubus) (1953).
➁ A wrinkling of time allowing two points to be connected through a 5th dimension thus permitting time travel, used in the science-fiction novel A Wrinkle in Time (1973).
➂ Ancient Asgardian artifact of unimaginable power kept in Odin's chamber, referred to as "The Cosmic Cube" and featured in Marvel Comic's latest series of films -- culminating in The Avengers (2012).
*request: Could we clean out the misspelled tags, please? I volunteer, if needed.