a photograph reduced to the size of a printed period, used especially to transmit messages, photographs, drawings, etc.

verb (used with object), mi·cro·dot·ted, mi·cro·dot·ting.

to make a microdot of.

Origin of microdot

First recorded in 1945–50; micro- + dot1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for microdot

hallucinogen, drug, acid, sunshine, candy, dot, blotter, peyote

Examples from the Web for microdot

Historical Examples of microdot

British Dictionary definitions for microdot



a microcopy about the size of a pinhead, used esp in espionage
a tiny tablet containing LSD
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012