Prism

['prɪz(ə)m] or ['prɪzəm]

Definition

(noun.) optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image.

(noun.) a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms.

Checked by Bryant--From WordNet

Definition

(n.) A solid whose bases or ends are any similar, equal, and parallel plane figures, and whose sides are parallelograms.

(n.) A transparent body, with usually three rectangular plane faces or sides, and two equal and parallel triangular ends or bases; -- used in experiments on refraction, dispersion, etc.

(n.) A form the planes of which are parallel to the vertical axis. See Form, n., 13.

Inputed by Cyrus

Definition

n. (geom.) a solid whose ends are similar equal and parallel planes and whose sides are parallelograms: (opt.) a solid glass triangular-shaped body used for resolving rays of light into their separate colours.—adjs. Prismat′ic -al resembling or pertaining to a prism: separated or formed by a prism.—adv. Prismat′ically.—ns. Pris′matoid Pris′moid a figure in the form of a prism.—adjs. Pris′matoidal Pris′moidal; Pris′my prismatic in colour.

Checked by Elisha

Examples

Typist: Moira

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