What does APNG mean?

APNG meaning in Urban Dictionary

1. APNG is made to be backwards-compatible with picture visitors which only support PNG. Older image people will simply disply 1st framework of this animation, like an ordinary picture.2. This APNG editor is a completely practical, easy to use, get across system program for making animated PNGs. Its at this time however a beta, nonetheless it does produce valid APNG files.