Sterilizations refer to the process of eliminating all microorganisms, including bacteria, viruses, and fungi. Synonyms for sterilization include disinfection, decontamination, purging, sanitation, and germicidal activity. These terms represent the process of removing all possible sources of biological contamination and providing a sterile environment. Disinfection is the act of cleaning an area or object by using chemical to destroy bacteria, viruses, and fungi, while decontamination refers to making an area or object free of hazardous materials. Purging involves the elimination of unwanted substances, and sanitation refers to maintaining cleanliness to prevent the spread of disease. Germicidal activity involves the process of killing all microorganisms by exposing an area or object to high levels of heat, pressure, or chemicals.