| Answer | Crossword Clue |
|---|---|
| pseudoscopes | PSEUDOSCOPE, an instrument producing images in reversed relief |
| pseudoscope | an instrument producing images in reversed relief |
| somascope | an instrument detecting disease of the internal organs by 'echo-sounding' methods and producing images of the diseased tissue on a television screen |
| somascopes | SOMASCOPE, an instrument detecting disease of the internal organs by 'echo-sounding' methods and producing images of the diseased tissue on a television screen |
