Definition of photostat
1
or
photostat machine
: a device used for making a photographic copy of graphic matter
- Photostat machines, which were introduced in the early 1900s and which make copies photographically on sensitized paper, were much too expensive for ordinary office use.
- —David Owen
2
: a copy made by a photostat machine
- I showed him the photostat of my license, complete with my picture.
- —Robert B. Parker
