microprinting

From micro- + printing.

microprinting (uncountable)

1. Microprint.
   • 2009 February 3, Rick Westhead, “Dozens dupe Indian airline, enter Canada”, in Toronto Star:

     Legitimate Indian passports feature a line in microprinting that reads "Indian Passport Control" across the photo page.

2. The generation of microprint.
   • 1998, Daniel Jed Harrison, Albert Van Den Berg, Micro Total Analysis Systems '98:

     Microprinting of hydrophobic gold surfaces with carboxy terminated thiols generates hydrophilic domains.