Pharmacology is the study of how molecules, such as medicines, interact with the body. Scientists who study pharmacology are called pharmacologists, and they explore the chemical properties, biological effects, and therapeutic uses of medicines and other molecules. Their work can be broken down into two main areas: Pharmacology is a branch of medical and biological sciences which encompasses the research, discovery, and characterization of chemicals exhibiting biological effects, alongside the elucidation of cellular and organismal function in relation to these chemicals. Relating to pharmacology or to the composition, properties, and actions of drugs. 2. physiology A dose of a chemical agent that is so much larger or more potent than would occur naturally that it might have qualitatively different effects. Medical Dictionary for the Health Professions and Nursing © Farlex 2012. The meaning of PHARMACOLOGICAL is of, relating to, or determined by pharmacology. How to use pharmacological in a sentence. Pharmacology is the study of how medicines work and how they affect our bodies. The word ‘pharmacology’ comes from the ancient Greek words ‘pharmakon’ (meaning ‘drug’) and ‘logia’ (meaning ’knowledge of’). The meaning of PHARMACOLOGY is the science of drugs including their origin, composition, pharmacokinetics, therapeutic use, and toxicology. How to use pharmacology in a sentence. pharmacology, branch of medicine that deals with the interaction of drugs with the systems and processes of living animals, in particular, the mechanisms of drug action as well as the therapeutic and other uses of the drug. The science of drugs, including their composition, uses, and effects. 2. The characteristics or properties of a drug, especially those that make it medically effective. phar′ma·col′o·gist n. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. / ˌfɑː.mə.kəˈlɒdʒ.ɪ.k ə l / us / ˌfɑːr.mə.kəˈlɑːdʒ.ɪ.k ə l / relating to treatment that uses drugs (Definition of pharmacological from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press) PHARMACOLOGICAL definition: using, involving, or having to do with a drug or drugs. See examples of pharmacological used in a sentence.