PRISM
Scrabble letter values: P3R1I1S1M3 = 9
Definition
- noun a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms.
- noun optical device having a triangular shape and made of glass or quartz. — synonyms: optical_prism
Examples
- “used to deviate a beam or invert an image”