This best-selling dictionary contains 9,200 entries on all aspects of chemistry, physics, biology (including human biology), earth sciences, and astronomy. This new edition includes expanded coverage of global warming, forensic science, astrophysics, quantam theory, and the solar system. Supported by over 200 diagrams and illustrations the dictionary features recommended web links for many entries, accessed and kept up-to-date via the Dictionary of Science companion website. Other features include short biographies of leading scientists, full page illustrated features on subjects such as the Solar System and Genetically Modified Organisms, and chronologies of specific scientific subjects including plastics, electronics, and cell biology. Both concise and wide-ranging, this dictionary is an ideal reference work for students and a great introduction for non-scientists.