Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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1. A chemical reaction in which two or more molecules, e.g., of an adhesive, combine upon the separation of water or some other simple substance. If a polymer is formed, the process is known as polycondensation. See also: POLYMERIZATION . 2. The process of changing from a vapor into a liquid, as when steam condenses into water.

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