NOUN (1)

1. film on which materials are photographed at greatly reduced size; useful for storage; a magnification system is used to read the material;


VERB (1)

1. record on microfilm;

The Collaborative International Dictionary of English v.0.48:

Microfilm \Mic"ro*film\, n. [Micro- + film.]
   a photographic film with one or more very small images of
   printed or other graphic matter. Numerous images,
   corresponding to the contents of a book, newspaper, or
   journal, are typically produced on one long roll of film, and
   may be viewed for reading in a special apparatus called a
   microfilm reader.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

Microfilm \Mic"ro*film\, v. t.
   to photograph and produce images of on microfilm.
   [PJC]

WordNet (r) 3.0 (2006):

microfilm
    n 1: film on which materials are photographed at greatly reduced
         size; useful for storage; a magnification system is used to
         read the material
    v 1: record on microfilm

Moby Thesaurus II by Grady Ward, 1.0:

105 Moby Thesaurus words for "microfilm":
   Flexowriter typewriter, Photostat, Teleplotter, X-ray, Xerox,
   alphabetical printer, backing, bibliofilm, bipack,
   black-and-white film, bulletin board, calotype, capture on film,
   card, cartridge, catalog card, clone, color film,
   color negative film, copy, digital graph plotter, disc, ditto,
   dope, double, dry plate, dupe, duplicate, emulsion, facsimile,
   file, filing card, film, frame, hard copy, hectograph, index card,
   library catalog, magnetic recorder, magnetic tape, manifold,
   microcard, microcards, microcopy, microdot, microfiche, mimeo,
   mimeograph, monochromatic film, motion-picture film, mug,
   multigraph, negative, orthochromatic film, oscillograph recorder,
   oscilloscope, pack, pan, panchromatic film, phonograph record,
   photograph, photographic paper, photomap, plate, platter,
   printing paper, printout, punch cards, punched tape, quadruplicate,
   radiograph, reader, readout, recorder, reduplicate, relay register,
   replicate, reproduce, roentgenograph, roll, scoreboard, scorecard,
   scoresheet, shoot, slip, snap, snapshoot, snapshot, sound film,
   sound track, sound-on-film, soundstripe, stat, take a photograph,
   talbotype, tape, tape reader, teletypewriter, ticker tape, trace,
   transcribe, tripack, triplicate, vehicle, videotape