The application of a mild caustic substance to the skin in order to remove blemishes.

(chemistry) The net potential energy liberated or absorbed during the course of a chemical reaction

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

A field of study that embraces both chemistry and biology.

(medicine) peritonitis which results from the escape of the contents of the digestive tract into the peritoneum

(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.

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

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

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