/chemistry. /chemical characterization . /chemical composition . /chemical content . /chemical properties . /chemical structure . Used with chemicals, biological, and non-biological substances for their composition, structure, characterization, and properties; also used for the chemical composition or content of organs, tissue, tumors, body fluids, organisms, and plants. Excludes chemical analysis and determination of substances for which "analysis" is used; excludes synthesis for which "chemical synthesis" is used; excludes isolation and purification of substances for which "isolation & purification" is used. . 0.79
Chemical Compounds. Chemical Agents . Chemicals and Drugs . Chemical Products and Drugs . Chemical Products and Medicines . Chemical Products . Chemical Substances . Chemicals . 0.70