The Collaborative International Dictionary
Microform \Mi"cro*form\, n. [Micro- + form, n.] (Biol.) A microscopic form of life; an animal or vegetable organism of microscopic size.
Wiktionary
n. 1 microfilm, microfiche or similar materials 2 (context biology English) A microscopic form of life; an animal or vegetable organism of microscopic size.
Wikipedia
Microforms are any forms, either films or paper, containing microreproductions of documents for transmission, storage, reading, and printing. Microform images are commonly reduced to about one twenty-fifth of the original document size. For special purposes, greater optical reductions may be used.
All microform images may be provided as positives or negatives, more often the latter.
Three formats are common: microfilm (reels), aperture cards and microfiche (flat sheets). Microcards, a format no longer produced, were similar to microfiche, but printed on cardboard rather than photographic film.
Usage examples of "microform".
Maxwell Cade suggests that highly advanced visitors might conceivably have left information about themselves and their culture by superimposing it, in microform, onto rock crystals.
Before being alerted that combat was imminent, the crew of the Venture, like those of the other ships in the task force, had been passing the time in various amusements, some gambling, some composing letters home that would, after the censor had seen them, be sent in microform when courier space happened to be available.
To our left is Microform Services, the dark grotto where professors and grad students huddle in clusters of microfilm machines, squinting at panels of light.
The branches and limbs of coral seemed rigid only because each microform who darted away left chemical energy behind which only microforms who took up that exact position in the hierarchy, the same place and stance and posture, could fully enjoy.
Soon they will take Nole Whard Junior back to Earth, leaving the dome to my microforms and Mars to my mother and her friends.
Cerebelline Life-mistress who constructed these microforms had outdone herself.
He could follow the life experience of a few of the struggling microforms as they poured into his brain, but only one after another.
Anything would do - she needed a time-out from staring at the buildings without comprehension, and from trying to figure out whether the fossilized forms and microforms they contained held any more suggestion than the elusive touch of lives long gone.
As far as I am concerned there is nothing real but the Urgrund, both in its macroform (Brahman) and its microforms (the Atmans within us).