All Sites

» Alcwin.org

Site listing several types of dictionaries related to the sciences.

http://www.alcwin.org/

» ArtLex

Dictionary of visual art defines more than 3,500 art-related terms. Also includes a comprehensive collection of artwork and famous quotes.

http://www.artlex.com/

» Biographical Dictionary

Read about more than 28,000 notable men and women from history. Search by names, dates, professions, achievements, and more.

http://s9.com/

» DinoDictionary.com

Features profiles of over 300 known dinosaurs along with pronunciations of their names.

http://www.dinodictionary.com/

» Fact Monster

An online dictionary with definitions of more than 125,000 words and links to other related student tools.

http://dictionary.factmonster.com/

» Free On-line Dictionary of Computing

A searchable dictionary of terms from computing and related fields.

http://foldoc.org/

» Giraffian Children's Picture Dictionary

A collection of illustrated words and concepts, aimed at children in preschool or early primary years.

http://www.giraffian.com/dictionary

» Ice Phoenix Vocab Project

Downloadable program that looks up entire lists of vocabulary words.

http://iphoenix.sourceforge.net/

» InfoVisual

Thematic visual dictionary that focuses on learning through images. Concise definitions within the fields of vegetal biology, animal biology, human anatomy, and transportation.

http://www.infovisual.info/

» Little Explorers

Picture dictionary gives definitions, pictures, and Internet links for over 2,350 entries. Includes translations for English to and from Dutch, French, Spanish, and more.

http://www.enchantedlearning.com/Dictionary.html

» NetLingo Dictionary

Provides a glossary of Internet jargon and acronyms.

http://www.netlingo.com/

» OneLook Dictionary Search

Type in a word and search many dictionaries at once. Also has a reverse dictionary and translations.

http://www.onelook.com/

» PSEUDOdictionary

Defines everyday words including slang, webspeak, and colloquialisms.

http://www.pseudodictionary.com/

» Pidic.com

An online picture dictionary with thousands of images

http://www.pidic.com/

» RhymeZone

Online rhyming dictionary. Search for a word and get a list of potential words that rhyme in addition to a definition.

http://www.rhymezone.com/

» Tech Terms Computer Dictionary

A searchable dictionary of computer terms with definitions explained in simple language.

http://www.techterms.com/

» Terminology Collection: Online Dictionaries

Glossaries for several languages and for specialized fields from the University of Vaasa, Finland.

http://lipas.uwasa.fi/comm/termino/collect/

» The Internet Picture Dictionary

Free, online multilingual picture dictionary with interactive activities for English, French, German, Spanish, Italian and ESL learners.

http://www.pdictionary.com/

» The Skeptic's Dictionary

Definitions and essays on occult, paranormal, and supernatural ideas and practices from the point of view of someone who is a sceptic, that is, does not believe in these things.

http://www.skepdic.com/

» WebDictionary.co.uk

Online dictionary and reference website.

http://www.webdictionary.co.uk/

» Webopedia

Definitions of many computer-related terms, from hardware to the internet.

http://www.webopedia.com/

» Wordsmyth

A dictionary and thesaurus in one. Also gives parts of speech and examples for more than 50,000 words.

http://www.wordsmyth.net/

» eLook Dictionary

Provides definitions, synonyms, and related words.

http://www.elook.org/dictionary/

» wordIQ

Search on several different dictionaries, an encyclopedia, and the web.

http://www.wordiq.com/