| Answer | Crossword Clue |
|---|---|
| INKS | India and invisible |
| INKS | Invisible, indelible and India |
| INK | India or invisible |
| INKS | Invisible and red |
| INKS | Indelible and invisible |
| invisibles | Invisible exports and imports |
| sniffers | A device for detecting an invisible and dangerous substance, such as gas or radiation |
| DIE | Shuffle off this mortal coil, run down the curtain and join the bleedin' choir invisible |
| radiolucency | almost entirely transparent to radiation; almost entirely invisible in x-ray photographs and under fluoroscopy |
