Definition of microdot in English:
1A microphotograph, especially of a printed or written document, that is only about 0.04 inch (1 mm) across.
- One exhibit will focus on microdots which are photographed documents reduced to a size less than 1 millimetre.
- The Germans developed a miniature photograph, called a microdot, which reduced a foolscap page to the size of a full stop; this might easily pass a censor unnoticed.
- Consisting of a greatly reduced photograph of a typed page, a microdot could be pasted on top of a printed period at the end of a sentence in an otherwise innocuous missive sent between a spy and headquarters personnel.
1.1 [usually as modifier] Denoting a pattern of very small dots.
Definition of microdot in:
- British & World English dictionary
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