biotechnology Definition:
The industrial use of living organisms or biological techniques developed through basic research.
nanotechnology Definition:
The science and technology of building electronic circuits and devices from single atoms and molecules.
medicinal chemistry Definition:
A chemistry-based discipline, also involving aspects of biological, medical and pharmaceutical sciences. It is concerned with the invention, discovery, design, identification and preparation of biologically active compounds, the study of their metabolism, the interpretation of their mode of action at the molecular level and the construction of structure-activity relationships.