The Sixth Edition of this medical dictionary defines more than 54,000 terms, including over 3,000 new terms, bringing the dictionary up to date with the latest terminology.The Sixth Edition also features: 950 color images and photographs; detailed Anatomical Atlas by the Anatomical Chart Company, included in a special glossy insert; 68 appendices covering 11 sections such as units of measure, affixes, abbreviations, symbols and reference values; and British alternate spellings.