fission


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fission

 [fish´un]
1. the act of splitting.
2. asexual reproduction in which the cell divides into two (binary fission) or more (multiple fission) daughter parts, each of which becomes an individual organism.
3. nuclear fission; the splitting of the atomic nucleus, with release of energy.
binary fission the halving of the nucleus and then of the cytoplasm of the cell, as occurs in protozoa.

fis·sion

(fish'ŭn),
1. The act of splitting, for example, amitotic division of a cell or its nucleus.
2. Splitting of the nucleus of an atom.
[L. fissio, a cleaving, fr. findo, pp. fissus, to cleave]

fission

(fĭsh′ən, fĭzh′-)
n.
1. The act or process of splitting into parts.
2. Biology An asexual reproductive process in which a unicellular organism divides into two or more independently maturing daughter cells.
v. fis·sioned, fis·sioning, fis·sions

fis·sion

(fish'ŭn)
1. The act of splitting, e.g., amitotic division of a cell or its nucleus.
2. Splitting of the nucleus of an atom.
[L. fissio, a cleaving, fr. findo, pp. fissus, to cleave]

fission

Splitting into parts.
1. The asexual reproductive process by which a single-celled organism or a single cell in a multicellular organism splits into two daughter cells.
2. An atomic event in which the nucleus of an atom splits into fragments, with the loss of a small quantity of matter and the evolution of radiational energy of at least 100 million electron volts (mV).

fission

see BINARY FISSION.

fis·sion

(fish'ŭn)
1. The act of splitting, e.g., a mitotic division of a cell or its nucleus.
2. Splitting of the nucleus of an atom.
[L. fissio, a cleaving, fr. findo, pp. fissus, to cleave]
References in periodicals archive ?
However, there are some molecules that can be implemented in solar cells that have the ability to generate two excitons from a single photon -- a process called singlet fission. These solar cells form the basis for next-generation devices, which are still at infancy.
If we could harness nuclear fusion, it would be the cleanest source of energy available, especially because it wouldn't produce radiation like nuclear fission does.
Tables 5 and 6 show effect of radial and axial nodes number on the P (fission power relative to nominal) and time of maximum fission power parameters.
Against stiff competition, Fission Labs presented its revolutionary Smart Data Management System the purpose of which is to extract key performance indicators to improve the daily life of an average citizen.
In UNIT, nuclear fusion reaction is carried out at the main chamber and fission reaction at the sub-chamber.
The idea to combine nuclear fusion and fission in one reactor had been around for at least half a century.
Fission solutions will work under the Bitcentral brand.
Built by our in-house development team, 360 CMS is a modern web platform that enables users to easily maintain their website, similar to the Fission Web System, but without as many bells and whistles.
The apatite crystals were sealed in epoxy resin, polished, etched with a 2.5% HN[O.sub.3] solution for 70 s at 22 [degrees]C to enable visibility of the spontaneous fission tracks, fitted with a muscovite external detector (Miller et al., 1993) and irradiated in a nuclear reactor (Oregon State University Radiation Center) by thermal neutrons.
Despite her pivotal role, Lise Meitner was passed over by the Nobel committee, which awarded the 1944 award for the discovery of fission solely to her colleague Otto Hahn back in Nazi Germany--a dark moment in Nobel history, during a dark moment in human history.
lactea which were observed to undergo fission off the coast of la Manche, France [22].
Six of the properties consisting of approximately 388,000 acres of prospective ground are strategically located to the north, south, east and west of the Alpha Minerals (CVE:AMW) and Fission Uranium's (CVE:FCU) Patterson Lake South ("PLS") uranium discovery on the western flank of the Athabasca Basin.