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Meaning of FISSION

Pronunciation:  'fishun

WordNet Dictionary
  1. [n]  a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
  2. [n]  reproduction of some unicellular organisms by division of the cell into two more or less equal parts

FISSION is a 7 letter word that starts with F.


 Synonyms: nuclear fission
 See Also: agamogenesis, asexual reproduction, nuclear reaction, schizogony



Webster's 1913 Dictionary
\Fis"sion\, n. [L. fissio. See {Fissure}.]
1. 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
   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. (Zo["o]l.) A process by which certain coral polyps,
   echinoderms, annelids, etc., spontaneously subdivide, each
   individual thus forming two or more new ones. See

Biology Dictionary
 Definition: A type of cell division in which overall (i.e., not localized) cell growth is followed by septum formation which typically divides the fully grown cell into two similar or identical cells.
Thesaurus Terms
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