Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A polyhedron composed of two parallel copies of some particular polygon, connected by an alternating band of triangles.

from The Century Dictionary and Cyclopedia

  • n. An auxiliary prism; part of a compound prism placed with its refractive edge in a reversed position.

Etymologies

anti- +‎ prism (Wiktionary)

Examples

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