Search Result for "microdot": 
Wordnet 3.0

NOUN (1)

1. photograph reduced to the size of a dot (usually for purposes of security);


WordNet (r) 3.0 (2006):

microdot n 1: photograph reduced to the size of a dot (usually for purposes of security)
Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "microdot": bulletin board, card, catalog card, disc, file, filing card, film, index card, library catalog, magnetic tape, microcard, microfiche, microfilm, motion-picture film, phonograph record, platter, scoreboard, scorecard, scoresheet, slip, tape, ticker tape, videotape