Answer: prism

AnswerCrossword Clue
PRISMGeometric solid
PRISMSpectrometer component
PRISMLight beam bender
PRISMItem on the cover of Pink Floyd's "Dark Side of the Moon"
PRISMSpectral splitter
PRISMCrystal form
PRISMColor refractor
PRISMA dispersive one is commonly triangular
PRISMSpectroscope part
PRISMLight splitter
PRISMSpectrum displayer
PRISMRefracting object
PRISMSort of solid
PRISMTransparent pentahedron
PRISMChandelier pendant
PRISMSpectrum-showing device
PRISMLight-bending device
PRISMOptics device
PRISMOptics prop
PRISMRefraction device
prisma solid which disperses light into a spectrum
PRISMLight refractor
PRISMSpectrum separator
PRISMLight disperser
PRISMRainbow maker
PRISMSpectrum maker
PRISMOptics device used by Newton
PRISMTelescope component
PRISMGeometrical figure
PRISMLight bender
PRISMLight beam splitter
PRISMLight breaker
PRISMSpectrum creator
PRISMRefracting device
PRISMBender of rays
PRISMPeriscope part
PRISMSpectrum producer
PRISMBinoculars component
PRISMColor separator
PRISMBeam splitter