The term "p-2" can refer to a specific type of protein known as p-2 protein, which plays a role in various biological processes. This protein is often studied in the context of cellular functions and can be involved in signaling pathways that affect cell growth and differentiation. In some contexts, "p-2" may also refer to a classification or designation in scientific research, such as a particular phase in a study or a type of experimental condition. Understanding these classifications helps researchers communicate findings and methodologies effectively within the scientific community.