(chemistry) Any of several attractive forces that serve to bind atoms together to form molecules

(chemistry) An industrial facility used to manufacture chemical compounds.

(chemistry) any vessel designed to hold the compounds involved in a chemical reaction; a reaction vessel

(medicine) an extreme sensitivity, or allergic reaction, to any of various chemical compounds present in the normal environment

(chemistry, physics) The change in the nuclear magnetic resonance frequency of a nucleus depending on its electronic environment; used in NMR spectroscopy to determine the structure of molecules.

The branch of engineering that deals with the design, construction and operation of industrial process plants, and the physical, chemical and biological processes to create substances or energy in a useful and economic form.

(chemistry) any group of elements whose chemical and physical properties have similarities, and that vary progressively through the series; evident within the periodic table

Any noxious substance intended for use in military or police operations.

All the methods and procedures involved in defending against attack by chemical agents.

The system for naming chemical compounds. There are two systems of chemical nomenclature: