A Dictionary of ChemistryFully revised and updated, the seventh edition of this popular dictionary is the ideal reference resource for students of chemistry, either at school or at university. With over 5000 entries--over 175 new to this edition--it covers all aspects of chemistry, from physical chemistry to biochemistry. The seventh edition boasts broader coverage in areas such as nuclear magnetic resonance, polymer chemistry,nanotechnology and graphene, and absolute configuration, increasing the dictionary's appeal to students in these fields. New diagrams have been added and existing diagrams updated to illustrate topics that wouldbenefit from a visual aid. There are also biographical entries on key figures, featured entries on major topics such as polymers and crystal defects, and a chronology charting the main discoveries in atomic theory, biochemistry, explosives, and plastics.
MeSH: Medical Subject HeadingsThe Medical Subject Headings (MeSH) thesaurus is a controlled and hierarchically-organized vocabulary produced by the National Library of Medicine. It is used for indexing, cataloging, and searching of biomedical and health-related information. MeSH includes the subject headings appearing in MEDLINE/PubMed, the NLM Catalog, and other NLM databases.
Rikstermbanken contains more than 50 000 term records with definitions. Languages: Swedish, English, French, German, Finnish etc.
Dictionary of abbreviationsThis 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!
The Oxford English DictionaryThe Oxford English Dictionary is the ultimate authority on the usage and meaning of English words and phrases, and a fascinating guide to the evolution of our language. It traces the usage, meaning and history of words from 1150 AD to the present day. No dictionary of any language approaches the OED in thoroughness, authority, and wealth of linguistic information. The OED defines over half a million words, and includes almost 2.4 million illustrative quotations, providing an invaluable record of English throughout the centuries. The 20-volume Oxford English Dictionary is the accepted authority on the evolution of the English language over the last millennium. It is an unsurpassed guide to the meaning, history, and pronunciation of over half a million words, both present and past. The OED has a unique historical focus. Accompanying each definition is a chronologically arranged group of quotations that trace the usage of words, and show the contexts in which they can be used. The quotations are drawn from a huge variety of international sources - literary, scholarly, technical, popular - and represent authors as disparate as Geoffrey Chaucer and Erica Jong, William Shakespeare and Raymond Chandler, Charles Darwin and John Le Carré. In all, nearly 2.5 million quotations can be found in the OED . Other features distinguishing the entries in the Dictionary are authoritative definitions of over 500,000 words; detailed information on pronunciation using the International Phonetic Alphabet; listings of variant spellings used throughout each word's history; extensive treatment of etymology; and details of area of usage and of any regional characteristics (including geographical origins).