The splitting of a heavy nucleus into two, accompanied by the release of a relatively large amount of energy and usually one or more neutrons. It may be spontaneous but usually is due to a nucleus absorbing a neutron and thus becoming unstable.
Transverse splitting in two of bacterial cells, asexual.
In biology, fission occurs when a cell (or body, population, or species) divides into two or more parts and the regeneration of those parts into separate cells (bodies, populations, or species). Binary fission produces two separate cells, populations, species, etc., whereas multiple fission produces more than two cells, population...Found on http://en.wikipedia.org/wiki/Fission_(biology)
splitting or division (esp. of cells)Â Found on http://www.graduateshotline.com/list.html
Division of single-celled organisms, especially prokaryotes, in which mitosis does not occur. Also used to refer to mitosis in certain unicellular fungi.Found on http://www.ucmp.berkeley.edu/glossary/glossary_4.html
Cell division by cleavage (splitting) of the cell into two parts. Found on http://ppathw3.cals.cornell.edu/glossary/Defs_F.htm
(Nuclear) Fission is the process where a heavy nuclei (e.g. U-235) decays by splitting into two equal fragments (fission fragments). This process proceeds with the emission of Neutrons and Gamma Rays , the neutrons being available to initiated further fissions and thus a nuclear chain reaction. Some nuclides such as Cf-252 can undergo spontaneous f...Found on http://www.ionactive.co.uk/glossary.html
- reproduction of some unicellular organisms by division of the cell into two more or less equal parts 2. [n] - a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energyFound on http://www.webdictionary.co.uk/definition.php?query=fission
The splitting of a heavy nucleus into two or more lighter nuclei, releasing a large amount of energy. See also: Critical Chain Reaction, Frisch, Otto, Fusion, Nuclear Reaction.Found on http://www.diracdelta.co.uk/science/source/f/i/fission/source.html
The splitting of a heavy nucleus into two, accompanied by the release of a relatively large amount of energy and usually one or more neutrons. It may be spontaneous but usually is due to a nucleus absorbing a neutron and thus becoming unstableFound on http://www.encyclo.co.uk/local/20725
nuclear fission. A nuclear reaction in which an atomic nucleus breaks into smaller nuclei of comparable mass, releasing a large amount of energy.Found on http://antoine.frostburg.edu/chem/senese/101/glossary/f.shtml
The process in which heavy nuclei split to form lighter nuclei.Found on http://www.chemicalglossary.net/definition/765-Fission
The splitting of an atomic nucleus.This is what is done in nuclear reactors. A neutron is absorbed by the nucleus (making the nucleus unstable) which then splits into two smaller nuclei. For nuclei larger than iron, this process releases energy.
Found on http://www.gcse.com/glos.htm
Splitting the nucleus of an atom into smaller units
Found on http://www.fisicx.com/quickreference/science/glossary.html
The splitting of a heavy nucleus into two, accompanied by the release of a relatively large amount of energy and generally one or more neutrons. It may be spontaneous but usually is due to a nucleus absorbing a neutron.
Found on http://www.encyclo.co.uk/local/20841
A release of energy caused by the splitting of an atom's nucleus. This is the energy process used in conventional nuclear power plants to make the heat needed to run steam electric turbines. Found on http://www.neo.ne.gov/statshtml/glossaryf.htm
[ Latin fissio
. See Fissure
A cleaving, splitting, or breaking up into parts. 2. (Biol.)
A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage...Found on http://www.encyclo.co.uk/webster/F/34
A type of cell division in which overall (i.e., not localised) cell growth is followed by septum formation which typically divides the fully grown cell into two similar or identical cells. ... (09 Oct 1997) ... Found on http://www.encyclo.co.uk/local/20973
(fish´әn) the act of splitting. asexual reproduction in which the cell divides into two (binary fission) or more (multiple fission) daughter parts, each of which becomes an individual organism. nuclear fission; the splitting of the atomic nucleus, with release of energy. ...Found on http://www.encyclo.co.uk/local/21001
• (n.) A cleaving, splitting, or breaking up into parts. • (n.) A process by which certain coral polyps, echinoderms, annelids, etc., spontaneously subdivide, each individual thus forming two or more new ones. See Strobilation. • (n.) A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of s...Found on http://thinkexist.com/dictionary/meaning/fission/
The splitting of a heavy nucleus into two, accompanied by the release of a relatively large amount of heat and generally one or more neutrons. It may be spontaneous but usually is due to a nucleus absorbing a neutron.Found on http://www.encyclo.co.uk/local/21076
fission, in physics: see nuclear energy and nucleus; see also atomic bomb.Found on http://www.infoplease.com/ce6/sci/A0913414.html
In chemistry, fission is the disintegration of the nucleus of a heavy atom with the liberation of large amounts of energy.Found on http://www.probertencyclopaedia.com/browse/GF.HTM
Type: Term Pronunciation: fish′ŭn Definitions: 1. The act of splitting, amitotic division of a cell or its nucleus. 2. Splitting of the nucleus of an atom.Found on http://www.medilexicon.com/medicaldictionary.php?t=33465
In physics, the splitting of a heavy atomic nucleus into two or more major fragments. It is accompanied by the emission of two or three neutrons and the release of large amounts of nuclear energy. Fission occurs spontaneously in nuclei of uranium-235, the main fuel used in nuclear reactors. However, the process can also be induced by bombarding...Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0015993.html
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