A dictionary of abbreviations

"This online-only Dictionary of Abbreviations, exclusive to Oxford Reference Online, includes over 100,000 abbreviations and acronyms in alphabetical and numerical order, including the world's airports, airlines, currencies, astronomical signs and symbols, atomic numbers, and stocks codes, as well as computer, country, financial, medical, military, police, publishing, railway, scientific, technical, transportation, and United Nations abbreviations and acronyms, not to mention European food additive numbers"--Publisher.