Help Wordnik hunt for a million missing words by backing our Kickstarter!


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.


anti- +‎ prism (Wiktionary)



Log in or sign up to get involved in the conversation. It's quick and easy.