We found 54 dictionaries with English definitions that include the word radical:
Click on the first link on a line below to go directly to a page where "radical" is defined.
 General (27 matching dictionaries)
- radical: American Heritage Dictionary of the English Language [home, info]
- radical: Encarta® World English Dictionary, North American Edition [home, info]
- radical: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
- Radical, radical, radical: Wordnik [home, info]
- radical: Cambridge International Dictionary of English [home, info]
- Radical: Wiktionary [home, info]
- radical: Webster's New World College Dictionary, 4th Ed. [home, info]
- radical: The Wordsmyth English Dictionary-Thesaurus [home, info]
- radical: Infoplease Dictionary [home, info]
- radical: Dictionary.com [home, info]
- radical: Online Etymology Dictionary [home, info]
- radical: UltraLingua English Dictionary [home, info]
- radical: Cambridge Dictionary of American English [home, info]
- Radical (Chemistry), Radical (Chinese), Radical (Chinese character), Radical (mathematics), Radical, The Radical (movie): Wikipedia, the Free Encyclopedia [home, info]
- Radical: Online Plain Text English Dictionary [home, info]
- radical: Webster's Revised Unabridged, 1913 Edition [home, info]
- radical: Rhymezone [home, info]
- radical, radical, radical(e) (-aux): AllWords.com Multi-Lingual Dictionary [home, info]
- radical: Webster's 1828 Dictionary [home, info]
- radical: Hutchinson's Dictionary of Difficult Words [home, info]
- Radical: 1911 edition of the Encyclopedia Britannica [home, info]
- radical: Free Dictionary [home, info]
- radical: Hutchinson Dictionaries [home, info]
- radical: Mnemonic Dictionary [home, info]
- radical: WordNet 1.7 Vocabulary Helper [home, info]
- radical: LookWAYup Translating Dictionary/Thesaurus [home, info]
- radical: Dictionary/thesaurus [home, info]
Art (1 matching dictionary)
- radical: Literary Criticism [home, info]
Business (1 matching dictionary)
- radical: Legal dictionary [home, info]
Computing (4 matching dictionaries)
- Radical: Cybernetics and Systems [home, info]
- Radical: The Difference [home, info]
- Radical: Unicode Glossary [home, info]
- Radical (chemistry), radical: Encyclopedia [home, info]
Medicine (7 matching dictionaries)
- radical: Dorland's Illustrated Medical Dictionary [home, info]
- radical: Sound Alike Words [home, info]
- radical: online medical dictionary [home, info]
- radical: Prostate Cancer Interactive Glossary [home, info]
- Radical: Breast Cancer Glossary of Medical Terms [home, info]
- Radical: General Glossary [home, info]
- Radical (chemistry), radical: Medical dictionary [home, info]
Miscellaneous (2 matching dictionaries)
- radical: Sociology [home, info]
- radical: Political [home, info]
Science (11 matching dictionaries)
- radical: Electrochemistry Dictionary [home, info]
- Radical: Chemistry Dictionary [home, info]
- Radical: Eric Weisstein's World of Chemistry [home, info]
- Radical: Eric Weisstein's World of Mathematics [home, info]
- radical: Botanical Terms [home, info]
- radical (or free radical): PHYSICAL ORGANIC CHEMISTRY [home, info]
- radical: MATH SPOKEN HERE! [home, info]
- radical (basal): Flora of New South Wales [home, info]
- Radical: The Orchid Lady's Illustrated Orchid Encyclopedia [home, info]
- radical, radical, radical, radical, radical, radical: PlanetMath Encyclopedia [home, info]
- Radical: Atmospheric Chemistry and Air Quality [home, info]
Sports (1 matching dictionary)
- Radical: Sports Definitions [home, info]
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Quick definitions (radical)
▸ noun: a sign placed in front of an expression to denote that a root is to be extracted
▸ noun: a character conveying the lexical meaning of a logogram
▸ noun: a person who has radical ideas or opinions
▸ noun: (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
▸ noun: an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule than has lost an electron and will stabilize itself by stealing an electron from a nearby molecule ("In the body free radicals are high-energy particles that ricochet wildly and damage cells")
▸ noun: (linguistics) the form of a word after all affixes are removed
▸ adjective: arising from or going to the root ("A radical flaw in the plan")
▸ adjective: of or relating to or constituting a linguistic root ("A radical verb form")
▸ adjective: especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem ("Radical leaves")
▸ adjective: (used of opinions and actions) far beyond the norm ("Radical opinions on education")
▸ adjective: markedly new or introducing radical change ("Radical political views")
▸ Word origin
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