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Dictionaries & Encyclopedias

Search the Library Catalog to find encyclopedias and dictionaries, both print and online.
Use keywords such as dictionary, glossary, lexicon, or encyclopedia. Add words like psychology, chemistry, or engineering to find subject-specific reference works.
Examples of subject specific reference books:
9/11 Encyclopedia (2010), EBSCO eBook
Bailliere's Midwives' Dictionary (2008), Credo eBook
Black's Medical Dictionary (2010), Credo eBook
Encyclopedia of American education (2007), R370.973 U54
Grove encyclopedia of materials and techniques in art (2008), R703 G76
The Oxford English dictionary: being a corrected reissue with an introduction, supplement, and bibliography. 12 vol., 4 supplements (1972-1982). Oxford: Clarendon press, 1970. R423 O98
Webster's New World dictionary of American English. New York: Webster's New World, 1988. R423 W38n
The Wiley Encyclopedia of Packaging Technology (2010), Wiley ebook
World Books Encyclopedia (2007), Ref 031 W67
Credo Reference: Includes encyclopedias, dictionaries, thesauri, and books of quotations, as well as subject-specific titles covering topics from art to accountancy and literature to law.

Funk & Wagnall's New World Encyclopedia: Contains over 25,000 encyclopedic entries. Searchable by subject or keywords within the entry.

Gale Virtural Reference Library: Searchable full text of reference books in subjects including business, environment, history, medicine, multicultural studies, religion, and science.

OED Online (Oxford English Dictionary): English language words from earliest records of written language to present day. Over 2 million dated quotations from English language history literature and facts concerning word forms, changes, and etymology.
Oxford Reference Online: 100 language and subject dictionaries and reference works. Includes language, science and medicine, humanities, social sciences. and business and professional topics.
World Book Advanced: General encyclopedia with 26,000+ articles, plus 12,000+ pictures and maps, 100+ videos and animations, and 10,000 sounds (including pronunciations). Includes World Book Dictionary with 248,000 definitions, World Book Atlas with 750 maps, and more.
Chambers Reference: Search Chambers 21st Century Dictionary, Chambers Thesaurus, and Chambers Biographical Dictionary.
Merriam-Webster OnLine Search: Dictionary based on Merriam-Webster's Collegiate® Dictionary, Eleventh Edition. Also includes word of the day, word games, and more.
OneLook Dictonary: Search engine for words and phrases that links to web-based dictionaries that define or translate a word. More than 5 million words in over 900 online dictionaries are indexed by OneLook®.
DictSearch: Search in 132 online dictionaries. Translate from 56 source languages into 58 target languages - almost 300 language combinations.
Free Translation: Computer-generated free translations of both text and web pages.
Google Language Tools: Translates material and webpages to and from 51 different languages; also translates Google search interface into many languages.
Internet Dictionary Project: Translates English words into Italian, French, German, Spanish, Latin, or Portuguese; or from those languages into English.
Lexicool: Meta-searches 7000+ bilingual and multilingual dictionaries and glossaries freely available online.
Online Dictionaries and Translators: Provides links to online dictionaries or translators in languages from Ahmeric to Nepali to Zarma and every language in between.
TravLang's Translating Dictionaries: Translations from many different languages, including English to foreign language and foreign language-to-foreign language translations.
WordReference: online language dictionaries--English to French, Italian, Spanish, German, and more.
Yahoo! Babel Fish Translation Service: Translate a block of text or an entire website in over ten different languages.
Bartleby's: Collection of historic online reference works.
Encyclopedia Smithsonian: Responses to frequently asked questions (FAQs) hierarchically arranged by topic. Includes many reading lists of recommended books.
Ninth Edition of the Encyclopedia Britannica: content of the historic 1902 "scholar's edition."
OTHER DICTIONARIES Directory of acronymns and abbreviations.
AF: Acronym Finder: Database of more than 475,000 abbreviations and acronyms about computers, technology, telecommunications, and military acronyms and abbreviations.
Basic Dictionary of ASL Terms (American Sign Language: Over 1000 basic ASL signs including the alphabet and numbers. Includes both animated and text definitions.
Banished Words: from Lake Superior University. The Annual ‘extreme’ List of Words Banished from the Queen's English for Mis-Use, Over-Use and General Uselessness.
The Braille Alphabet: Visual representation of the Braille alphabet.
Rhyming Dictionary: Find words that rhyme or almost rhyme with, or sound exactly the same as a certain target word. Also find words that approximate or have the same meaning as an intended concept.
Urban Dictionary: Online dictionary of contemporary slang.
Visual Dictionary Online: 6,000 illustrations with twenty-thousand full definitions representing all aspects of life.
Wordia: online textual dictionary. VIDEOS.
Wordnik: Definitions with example of words in context, information about frequency and use patterns, related words, and more
WolframAlpha: Look up factual data of all sorts in all subjects and disciplines.
ADAM Medical Encyclopedia: Consumer-oriented encyclopedia of diseases, tests, symptoms, injuries, and surgeries.
Catholic Encyclopedia: Content of the historic 1917 encyclopedia, available online.
Encyclopedia Mythica: Covers mythology, folklore, and religion--worldwide
Jewish Encyclopedia: Content of the historic 1906 encyclopedia, available online.
Tennessee Encyclopedia of History and Culture: Online encyclopedia on the history of Tennessee.
While encyclopedias are arranged alphabetically, you'll find more material if you use the Index first.