Autoclaves are devices used to sterilize equipment and materials by subjecting them to high-pressure steam. The antonyms of autoclaves are devices that do not sterilize equipment or materials. Examples of such devices include dishwashers, washing machines, and dryers. These devices are used to clean and dry clothing, dishes, and other household items, but they cannot sterilize them. In medical settings, other antonyms for autoclaves can include hand sanitizers and cleaning agents that do not provide complete sterilization. However, it should be noted that while these devices do not sterilize equipment or materials, they do play an important role in maintaining cleanliness and preventing the spread of infection.