Related Clues:
- Glass triangle that separates light into colours
- Glass triangle, separates light into colours
- Triangular shape of glass or quartz, breaks up a beam
- Egyptian stone structure
- For a light turn-up for the knight with the Prime Minister around
- It's proper to be so refractive around the South
- A put-up job in a deserted spot - not at the end of it in the end
- Binoculars part
- Binoculars component
- Light-refracting crystal
- Optical equipment teacher returned in the afternoon
- Miss _____, governess in ¿he Importance of Being Earnest'
- Solid figure - light separator
- Egyptian building
- Shape used to disperse light beams