· Sepsis means presence of the pathogenic microorganism in the living tissue or in the body fluid
· Contamination the presence of microorganisms on the living tissues, materials and equipment
· Infections the growth of microorganism on, and their invasion of living tissues
· Sterilization means complete elimination of all microorganisms (including both vegetative and spore forming) by using physical and chemical methods of sterilization.
· Asepsis is the state of being free from disease pathogenic microorganisms in the living tissue or in the body fluid (such as bacteria, viruses, fungi, parasites).
· Antisepsis is the methods to combat pathogenic microorganisms or inhibit their growth by antiseptics and disinfectants.
· Contamination is the presence of microorganisms on the living tissue, materials and equipments.
· Infection is the growth of microorganism on and their invasion of living tissues.