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WordNet-Online 
 Definitions from WordNet
Noun micron has 1 sense 
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| Definitions from the WebMicronsDefinition:Microns, abbreviated as µm, is a unit of measurement used to quantify lengths or distances. It is equal to one millionth of a meter or one thousandth of a millimeter. Example sentences:
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| microminiature micromolar affinity micromyx micromyx minutus micron micronase micronesia micronor microns micronutrient micronutrients micronychia microorganism microorganisms micropaleontology micropartner micropayment 
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