:microfloppies: n. 3.5-inch floppies, as opposed to 5.25-inch
{vanilla} or mini-floppies and the now-obsolete 8-inch variety.
This term may be headed for obsolescence as 5.25-inchers pass out
of use, only to be revived if anybody floats a sub-3-inch floppy
standard. See {stiffy}, {minifloppies}.
-- The AI Hackers Dictionary