Webster's New World Dictionary of Science provides all the answers to the questions people most often ask about the world of science, in one A-Z volume. Over 7,000 entries are drawn from one of the most authoritative and up-to-the-minute encyclopedia databases in the world. These entries cover the range of physical and natural sciences from aeronautics to zoology. 500 illustrations, plus numerous diagrams, tables and chronologies help explain difficult scientific concepts and discoveries. Unlike most paperback science dictionaries, Webster's New World Dictionary of Science is completely American in content, with data and statistics that are pertinent to the Americas, as well as to the larger world. Extensive cross-referencing assists readers in conducting more comprehensive research. Concise biographical data of major scientists are also included. Affordably priced, the illustrated Webster's New World Dictionary of Science is perfect for students and science enthusiasts alike.