"Microsidal" typically refers to substances or agents that kill or inhibit the growth of microorganisms, including bacteria, fungi, and viruses. These agents are commonly used in disinfectants, antiseptics, and preservatives to control microbial contamination. The term is often used in the context of various fields including healthcare, pharmaceuticals, and food safety. It's important to differentiate microsidal agents from those that merely inhibit growth, known as microbiostatic agents.