Noun micron has 1 sense
  1. micron, micrometer - a metric unit of length equal to one millionth of a meter
    --1 is a kind of metric linear unit
    --1 is a part of millimeter, millimetre, mm
    --1 has parts:
     nanometer, nanometre, nm, millimicron, micromillimeter, micromillimetre
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