Definition of microdot noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈmaɪkrəʊdɒt//
    ; NAmE NAmE//ˈmaɪkroʊdɑːt//
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  1. 1a very small photograph about one millimetre in size, usually of a printed document
  2. 2a very small round piece of a drug, especially the illegal drug LSD See related entries: Addiction
See the Oxford Advanced American Dictionary entry: microdot