mi·cro·pub·lish·ing 
(mīkrō-pŭb′lĭ-shĭng)
(mīkrō-pŭb′lĭ-shĭng)n.
1.
a. Publishing involving very small print runs or individual volumes printed on demand.
b. Online publishing providing specialized information, often by subscription, to a limited readership.
2. Publishing by microform.
micro·pub′lish·er n.