Pharmacological/ˌfɑːrməkəˈlɑːdʒɪkl/ Definition 1 of 1Pro Tip 1/3Medical Context Used when discussing drug functions and their effects on health. He's researching the pharmacological properties of new heart medicine. Pro Tip 2/3Technical Term Common in scientific, health care, and academic discussions, not day-to-day language. Pharmacological knowledge is essential for pharmacists. Pro Tip 3/3Drug Interactions Refers to how different drugs may affect each other when taken together. Her pharmacological expertise helped prevent adverse drug interactions.