- noun an index sheet, made of several microfilm photographs
- A flat card of film, usually 4 × 6 inches or 3 × 5 inches, upon which photographically-reduced images of printed sheets, or other information, is stored. A microfiche reader is necessary for viewing.
Information & Library Science
- noun a small sheet of photographic film on which information is stored in very small print
- noun a sheet of microfilm containing information laid out in a grid pattern