Top definition
A situation when one is unable or fails to figure out whether a label or code contains the numeral zero or the letter "o."
Am I a victim of zerofusion? I get frustrated when a requested barcode or ISBN I sent to the other party isn't accepted, which makes me wonder whether I had misread the number 0 for the letter o, or vice versa.
by MathPlus June 28, 2016
Happy St. Patties Day!
buy the domain for your art site