n. | 1. the science that deals with all forms of life, including their classification, physiology, chemistry, and interactions 2. the structure and functioning of a particular organism 3. the forms of life in a particular environment and their behaviour, development, and history 4. the scientific study of living things 1. the science that deals with all forms of life, including their classification, physiology, chemistry, and interactions 2. the structure and functioning of a particular organism 3. the forms of life in a particular environment and their behaviour, development, and history 4. the scientific study of living things |