The protective clothing worn by an individual in a clean room that keeps human bacteria from infecting the chip-making process. The outfit was coined a bunny suit because it makes people look like oversized rabbits. See
clean room.
Bunny Suit
Most of the technicians in a clean room must wear a bunny suit, and getting into one is an elaborate procedure that takes several steps. Not everyone is able to handle a job requiring the wearing of a covering that can feel very claustrophobic. (Image courtesy of VLSI Technology, Inc.)