Full name: millimicron
Plural form: millimicrons
Category type: length
Scale factor: 1.0E-9
The SI base unit for length is the metre.
1 metre is equal to 1000000000 millimicron.
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The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millimicron = 10-3 microns.
The definition of a micron is as follows:
a metric unit of length equal to one millionth of a meter