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We found 44 dictionaries with English definitions that include the word fission: Click on the first link on a line below to go directly to a page where "fission" is defined. General (29 matching dictionaries) fission: American Heritage Dictionary of the English Language [home, info] fission: Collins English Dictionary [home, info] fission: Vocabulary.com [home, info] fission: Macmillan Dictionary [home, info] fission: Merriam-Webster's Online Dictionary, 11th Edition [home, info] Fission, fission: Wordnik [home, info] fission: Cambridge Advanced Learner's Dictionary [home, info] fission: Wiktionary [home, info] fission: Webster's New World College Dictionary, 4th Ed. [home, info] fission: The Wordsmyth English Dictionary-Thesaurus [home, info] fission: Infoplease Dictionary [home, info] fission: Dictionary.com [home, info] fission: Online Etymology Dictionary [home, info] fission: UltraLingua English Dictionary [home, info] fission: Cambridge Dictionary of American English [home, info] Fission (band), Fission (disambiguation), Fission: Wikipedia, the Free Encyclopedia [home, info] Fission: Online Plain Text English Dictionary [home, info] fission: Webster's Revised Unabridged, 1913 Edition [home, info] fission: Rhymezone [home, info] Fission: AllWords.com Multi-Lingual Dictionary [home, info] fission: Hutchinson's Dictionary of Difficult Words [home, info] fission: Free Dictionary [home, info] fission: Hutchinson Dictionaries [home, info] fission: Mnemonic Dictionary [home, info] fission: WordNet 1.7 Vocabulary Helper [home, info] fission: LookWAYup Translating Dictionary/Thesaurus [home, info] fission: Dictionary/thesaurus [home, info] Business (2 matching dictionaries) Fission: Energy Dictionary [home, info] fission: Legal dictionary [home, info] Computing (1 matching dictionary) fission: Encyclopedia [home, info] Medicine (2 matching dictionaries) fission: online medical dictionary [home, info] fission: Medical dictionary [home, info] Science (7 matching dictionaries) Fission: Eric Weisstein's World of Physics [home, info] Fission: Extragalactic Astronomy [home, info] fission: General Chemistry Online [home, info] Fission (fissioning): NRC Glossary of Nuclear Terms -- [home, info] fission: Natural History Terms [home, info] FISSION: Zoom Astronomy Glossary [home, info] Tech (3 matching dictionaries) fission: NATURAL RESOURCES DEFENSE COUNCIL [home, info] FISSION: Energy Terms [home, info] Fission: Nuclear Terms [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (fission) ▸ noun:  a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy ▸ noun:  reproduction of some unicellular organisms by division of the cell into two more or less equal parts ▸ Word origin