microdot

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mi·cro·dot / ˈmīkrəˌdät/ • n. 1. a microphotograph, esp. of a printed or written document, that is only about 0.04 inch (1 mm) across. ∎  [usu. as adj.] denoting a pattern of very small dots.2. a tiny tablet or capsule (of LSD): more than 1,000 microdots of LSD.

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