Portuguese Online Language Dictionaries

  Portuguese Translation Engines

Google Translate Tool - Translate text or a web page from Portuguese to English, or English to Portuguese, plus a number of other languages. Links in the page translated with the web page translator will also render in the new language.
Translated.net Online Translation Engine - Translation service with free online translations of text from Portuguese to and from English, Chinese, French, German, Greek, Italian, Japanese, Korean, Russian, and Spanish, with a large variety of technical and specialty lexical databases.
Dictionary.com Translation Engine - Translate text from Portuguese to English and vice-versa, plus a number of other language combinations.
WorldLingo Free Online Translator - Translates text and sentences in Portuguese to and from English, Chinese, Dutch, French, German, Greek, Italian, Japanese, Korean, Russian, and Spanish. Also offers web page translation and email translation.



  Portuguese and Portuguese-English Dictionaries

Portoeditora Portuguese-English on-line dictionary - Bilingual dictionary with more than 600,000 searchable words, approximately 235,000 definitions, expressions and example sentences. Interface in Portuguese; requires registration.
Michaelis Moderno Dicionário da Língua Portuguesa - Online dictionary of Modern Portuguese. Interface in Portuguese, with dictionaries for Portuguese and English, French, German, Italian, and Spanish..
Corrector Sintáctico e Ortográfico Online - Syntax correction for Portuguese. Interface in Portuguese.
LookWAYup Dictionary - Portuguese-English dictionary, also includes English-Portuguese; click "More" for thesaurus and synonyms; double-click a word in the definition to define it.
LingvoSoft Portuguese-English Online Dictionary - Bilingual Portuguese-English dictionary; site also includes a multilingual dictionary with 25 languages.
UltraLingua Portuguese-English and English-Portuguese Dictionary - Portuguese-English, English-Portuguese, and many other foreign dictionaries, plus web page translations and downloadable translation toolbar.
Freedict Portuguese-English Dictionary - Bilingual Portuguese-English Dictionary.
Ectaco Online Portuguese-English Dictionary - Portuguese-English bilingual dictionary; site also includes 21 other languages.
Dict.info Portuguese Dictionaries - A collection of free Portuguese bilingual dictionaries for many languages. Browsable online, with word searches, and downloadable data files.
Dictionary of Portuguese slang - Online dictionary of Portuguese slang, original title Dicionário aberto de calão e expressões idiomáticas. Interface in Portuguese.



  Medical and Technical

Dicionario Medico - Monolingual Portguese medical dictionary.
Portuguese Dictionary of Places and Names - Monolingual Portguese geographical dictionary.
Portuguese Dictionary of Foreign Words - Monolingual Portguese foreign loanwords dictionary.