This dictionary provides an authoritative, up-to-date, international consensus on the definition or interpretation of concepts necessary to an understanding of the principles and practice of homeopathy. It is compiled through the help of a panel of international experts, and is written as a reference work for homeopaths, but it will also help integrate homeopathy into medical practice as a whole. It reconciles conceptual differences and inconsistencies and provides a unifying and progressive influence on the development of homeopathic medicine.