| Fission (fission) |
|---|
| n. | (?) |
|---|
| Fis"sion |
| [L. fissio. See
Fissure.] |
A cleaving, splitting, or
breaking up into parts.
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.
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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In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 