Definition of "scotograph" in İngilizce

noun

1. (obsolete, rare) An instrument for writing in the dark, or by the blind.

2. (photography, obsolete, rare) An impression made on a photographic plate by a radioactive substance without the intervention of any opaque object other than the screen of the plate.

3. (occultism) An image of a ghost or other apparition appearing on unexposed film.