"Abnormal" refers to something that deviates from what is typical or expected. It can describe behaviors, conditions, or characteristics that are not commonly observed in a given context. For example, in psychology, an abnormal behavior might indicate a mental health issue that requires attention. In medicine, "abnormal" often pertains to test results that fall outside the normal range, suggesting potential health concerns. For instance, an abnormal blood test result may indicate an underlying condition that needs further investigation. Understanding what is considered abnormal helps in identifying and addressing various issues effectively.