noun
- a photograph reduced to the size of a dot for purposes of espionage or secret communication
- a very small tablet of LSD
Usage: espionage; historical
Usage: slang; drug-related
Examples
- The spy hid the microdot under a postage stamp.
- Intelligence agencies used microdots to transmit classified information.
- The microdot contained detailed military plans.
- Investigators found the microdot concealed in the letter.
- During the Cold War, microdots were a common espionage tool.
- The message was photographed and reduced to a microdot.