Word

optical prism, n.

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

optical prism prism

lexical pointers

derivationally related form

prismatic prismatic

semantic pointers

part holonym

biprism telescope, scope spectroscope, prism spectroscope

hyponym

erecting prism

hypernym

optical device