1) A layer of the stratosphere of earth that contains molecules of ozone, an allotrope of oxygen containing 3 atoms of oxygen. Its purpose is to protect us from ultraviolet sun rays.
2) A Romainian pop band, made famous by Gary Brolsma's webcam video of himself fearlessly dancing to a song now known as Numa Numa.
1. Lets not destroy the ozone layer, kids!
2. "Maaii-a-hiii! Ozone rocks!"