- a form of microfiche with the images greatly reduced in size, generally by a factor of 100 or more.
Origin of ultrafiche
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a sheet of film, usually the size of a filing card, that is similar to a microfiche but has a much larger number of microcopies
C20: from ultra- + French fiche small card. See microfiche