(geometry) A polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.

Containing prisms

plural of prism

A prism with a triangular base.

(geometry) a prism whose cross section is an irregular polygon / (geometry) a solid that is like a prism but whose cross section is not (necessarily) a polygon

An optical device that separates randomly polarized or unpolarized light into two orthogonal linearly polarized outgoing beams.

(mathematics) a prism with a pentagonal base

(geometry) any prism, an octahedron, constructed on a hexagonal base

A kind of reflective prism used to invert an image.

A reflection prism used in optical instruments to alter the orientation of an image. It consists of a block of glass shaped as a right geometric prism with right-angled triangular end faces.