Sterility refers to the complete absence of all living microorganisms, including bacteria, viruses, and fungi. It is a critical concept in fields like medicine, where maintaining a sterile environment is essential to prevent infections during surgeries or medical procedures. Sterile techniques are employed to ensure that instruments and surfaces are free from contaminants. In laboratories, sterility is vital for experiments that require uncontaminated conditions. Methods such as autoclaving, filtration, and the use of sterile gloves help achieve and maintain sterility. Understanding and implementing sterility is crucial for the safety and success of various scientific and medical practices.