Final answer:
Sterilization is the decontamination process that kills most of the microorganisms present, aiming to completely remove or eradicate all forms of microbial life, including bacterial endospores and viruses.
Step-by-step explanation:
The technical decontamination process that kills most of the microorganisms present is sterilization. Sterilization is a method that aims to eradicate all forms of microbial life, including vegetative cells, endospores, and viruses. This is achieved through physical methods like high heat, pressure, or filtration, or by using chemical sterilants. While methods such as sanitization and disinfection reduce the number of microbes to safe levels or inactivate many microbes on surfaces, respectively, sterilization is the most effective at completely eliminating all forms of microbial life.