(Greek: chymeia)

The science which investigates the composition of matter and the intramolecular and intra-atomic changes which metamorphose its physical properties. It may be divided in general into: inorganic chemistry which is concerned with metallic elements and their compounds; organic chemistry treating of carbon and its compounds; and pure and applied chemistry, according as it deals with the laws regulating chemical action or their practical application. Many Catholics and other Christians have accomplished notable work in the various branches of the science.

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New Catholic Dictionary

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