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From Aa toZweikanter, this popular dictionary has now been revised and updated. This edition includes over 1,000 new terms plus: accurate definitions without technical jargon; many word origins; hyphenation and pronunciation guide; commonly used abbreviations; a geologic time and life chart. The definitions in this book are drawn largely from the authoritative 36,000-term Glossary Of Geology, to which nearly 150 specialists from
all fields of the geosciences contributed. Both the Glossary and this Dictionary were prepared as a service of the American Geological Institute, a federation of geoscience societies united to provide information to the science community and the public.