The Macmillan Dictionary of the History of Science is the first dictionary devoted to the history of scientific ideas. Organised alphabetically by concept, it contains more than 700 entries explaining the origins, meaning and significance of the chief theories and ideas that have contributed to the development of science, including medicine, mathematics and the human sciences. This Dictionary contains entries several hundreds of words long, while the major themes consist of over a thousand words. The Dictionary is extensively cross-referenced and also contains an index listing all the scientists mentioned in the book with the entry headings under which they appear, so giving a concise profile of individual interests and areas of work.