i Register
In some senses, microdot is marked as informal. Watch for register when choosing this word.
microdot
noun 2verb 2
Definitions
noun
1
A text or photographic image that has been reduced in size to that of a typographical dot in order to escape detection by unintended recipients.
2
A small-sized tablet containing lysergic acid diethylamide (LSD).
verb
1
To mark with a microdot.
2
To make into a microdot.
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