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A copy or photograph that has been reduced to an extremely small size for ease of transport and purposes of security.


1. (Photography) a microcopy about the size of a pinhead, used esp in espionage
2. (Recreational Drugs) a tiny tablet containing LSD


(ˈmaɪ krəˌdɒt)

a photograph reduced to the size of a printed period, used esp. to transmit messages, photographs, drawings, etc.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.microdot - photograph reduced to the size of a dot (usually for purposes of security)
photo, photograph, pic, exposure, picture - a representation of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material


[ˈmaɪkrəʊˌdɒt] Nmicropunto m
References in periodicals archive ?
Paint with coded microdots is being trialled in Cumbria in a bid to tackle sheep theft.
Tubes are inverted and checked for microdots manually, one by one.
In so doing, The Intercept inadvertently exposed its source: The photocopied document had telltale creases and barely discernible microdots that identified the printer's serial number, and the date and time of the printing.
The police had recovered 1,400 microdots of LSD ( Lysergic Acid Diethylamide) in a raid at a Mumbai hotel.
The special liquid contains microdots, which glow blue under ultra violet light, and a unique secure DNA signature that allows the police to trace the property back to the original owner.
There, I took on a false identity in a Mission: Impossible adventure, discovered that Mary Queen of Scots' secret messages were revealed when they were decoded, and explored a world of dead drops, microdots and lipstick pistols.
The SB system consists of a label incorporating 500 microscopic PIN coded microdots, holoNFC, patented HoloQR, UV marking pen applicator kit and Apple's iBeacon with a Crowd GPS mobile app.
Cryptography, another type of encryption, uses things like merging words with images and using microdots to scramble plain information as it is being sent.
Selected samples microdots were fixed with scanning electron microscopes (SEM) (FEI Quanta 200, magnification x 500).
The work, by Trace-in-Metal, sees thousands of microdots infused into lead sheets "marking" them with a unique identifying code.
Adding additional materials in specific patterns can be detected using the ChromaID technology adding a new dimension of data density, very similar to the way microdots can hide large amounts of information in "plain sight".
It utilizes a dual camera system with a large-view camera that locates microdots or reference points on a prepress table holding the plate to be mounted.