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1. (n.) fission
the act of cleaving or splitting into parts.
2. fission
the splitting of the nucleus of an atom into nuclei of lighter atoms, accompanied by the release of energy.
3. fission
the division of a biological organism into new organisms as a process of reproduction.
4. (v.t.) fission
to cause (an atom) to undergo fission.
Etymology: (1835–45; < L fissiō splitting, cleaving)
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| Definition of 'fission' |
Princeton's WordNet |
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1. (noun) fission
reproduction of some unicellular organisms by division of the cell into two more or less equal parts
2. (noun) fission, nuclear fission
a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
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| Definition of 'fission' |
Webster Dictionary |
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1. (noun) fission
a cleaving, splitting, or breaking up into parts
2. (noun) fission
a method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage of the into two parts, each of which then becomes a separate and independent organisms; as when a cell in an animal or plant, or its germ, undergoes a spontaneous division, and the parts again subdivide. See Segmentation, and Cell division, under Division
3. (noun) fission
a process by which certain coral polyps, echinoderms, annelids, etc., spontaneously subdivide, each individual thus forming two or more new ones. See Strobilation
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Sense: the splitting of the nuclei of atoms.
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 Afrikaans: splitsing |
 Arabic: إنْشِطار |
 Bulgarian: деление |
 Brazilian: fissão |
 Czech: štěpení |
 German: die Spaltung |
 Danish: fission; spaltning |
 Greek: σχάση |
 Spanish: fisión |
 Estonian: aatomituuma lõhustamine |
 Farsi: کافش |
 Finnish: fissio |
 French: fission |
 Hebrew: בִקוַּע גַרעִינִי |
 Hindi: अणुओं का विभाजन, जीव कोशो |
 Croatian: fisija, cijepanje (raspad |
 Hungarian: (mag)hasadás |
 Indonesian: fisi |
 Icelandic: kjarnaklofningur |
 Italian: fissione |
 Japanese: 核分裂 |
 Korean: 핵분열 |
 Lithuanian: skilimas |
 Latvian: atomkodolašķelšanās |
 Malay: pembelahan |
 Dutch: splijting |
 Norwegian: spalting, fisjon |
 Polish: rozszczepienie |
 Persian: کافش |
 Pashto: سورى كېدنه، ما تېدنه، ټوټ |
 Portuguese: fissão |
 Romanian: fisiune |
 Russian: атомный распад |
 Slovak: štiepenie jadra |
 Slovenian: cepitev |
 Serbian: fisija |
 Swedish: klyvning, kärnklyvning |
 Thai: การแตกตัวของนิวเคลียสของอ |
 Turkish: nükleer bölünme |
 Taiwanese: 分裂（核分裂） |
 Ukrainian: розщеплення (атомного ядр |
 Urdu: ٹوٹنے یا بکھرنے سے طاقت ک |
 Vietnamese: sự phân hạch |
 Chinese: 裂变 |
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Definitions of fission 
