Solutions Optical device used to change an image from left to right has 4 entries with similar clues
- 4-letter words
- lensOptical device used to invert an image
- 7-letter words
- shudderShake from/with fear
- 8-letter words
- deadlockSituation from/in which no progress can be made
- 11-letter words
- epidiascopeAn optical projector giving images of opaque and transparent objects