During a fight in his secret laboratory, Doctor Schimmel was covered in an experimental chemical he had been working with. Batman tried to save him, but the damage had already been done. The freezing chemical bonded with his body, and he could no longer survive in any temperature higher than fifty degrees below zero. From then on, he referred to himself only as Mister Freeze. His condition requires him to wear a cooling suit whenever he leaves his icy lair. Freeze's warped mind blamed Batman for all that had happened to him, and immediately vowed revenge.

vi

1. to be formed into ice; be hardened or solidified by cold
2. to become covered or clogged with ice
3. to be or become very cold

Iceman