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fission    音标拼音: [f'ɪʃən]
n. 裂开,分裂,裂变

裂开,分裂,裂变

fission
n 1: reproduction of some unicellular organisms by division of
the cell into two more or less equal parts
2: a nuclear reaction in which a massive nucleus splits into
smaller nuclei with the simultaneous release of energy [synonym:
{fission}, {nuclear fission}]

Fission \Fis"sion\, n. [L. fissio. See {Fissure}.]
1. A cleaving, splitting, or breaking up into parts.
[1913 Webster]

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}.
[1913 Webster]

3. (Zool.) A process by which certain coral polyps,
echinoderms, annelids, etc., spontaneously subdivide, each
individual thus forming two or more new ones. See
{Strobilation}.
[1913 Webster]

4. (Physics) The act or process of disintegration of an
atomic nucleus into two or more smaller pieces; called
also nuclear fission. The process may be spontaneous or
induced by capture of neutrons or other smaller nuclei,
and usually proceeds with evolution of energy.
[PJC]

124 Moby Thesaurus words for "fission":
ablate, abscission, accelerate, activate, alpha decay, amputation,
atom-chipping, atom-smashing, atomic disintegration,
atomic reaction, atomization, atomize, beta decay, bifurcate,
bisect, bombard, bombardment, branch, break into pieces,
break to pieces, break up, breeding, bullet, butchering, by two,
catalysis, catalyst, chain reaction, chopping, cleavage, cleave,
come apart, consume, corrode, crack up, crash, cross-bombard,
crumble, crumble into dust, crunch, crush, cut in two,
cut to pieces, cutting, decay, decompose, demolish, dialysis,
dichotomize, dichotomy, diffuse, dimidiate, disintegrate,
disintegration series, disjoin, disorganize, disperse, disrupt,
dissociation, dissolve, divide, enucleation, erode,
exchange reaction, excision, fall to pieces, fission reaction,
fork, fragment, gamma decay, grind, halve, hydrolysis, hydrolyst,
in half, ionization, laceration, make mincemeat of, mince, molder,
mutilation, neutron reaction, nonreversible reaction,
nuclear fission, nucleization, nucleize, photodisintegration,
photolysis, proton gun, proton reaction, pulverize, ramify,
rending, resection, reversible reaction, ripping, scatter,
scission, section, severance, shatter, shiver, slashing, slicing,
smash, smash the atom, smash up, splinter, split, split in two,
splitting, splitting the atom, squash, squish, stimulation,
subdivide, surgery, target, tearing, thermolysis,
thermonuclear reaction, transect, waste away, wear away



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  • FISSION: Home
    Now in its eleventh edition, FISSION brings together young scientists from around the world to share ideas, showcase innovation, and explore science beyond the classroom
  • Nuclear fission - Wikipedia
    Nuclear fission produces energy for nuclear power and drives the explosion of nuclear weapons Both uses are possible because certain substances called nuclear fuels undergo fission when struck by fission neutrons, and in turn emit neutrons when they break apart
  • Installing Fission
    Once you are done with fission installation, run these commands to make sure fission is installed successfully and all core components of fission are working properly
  • DOE Explains. . . Nuclear Fission - Department of Energy
    Nuclear fission is the process where the nucleus of an atom splits into two or more smaller nuclei and other particles These particles can include neutrons, alpha particles (helium nuclei), beta particles (electrons), and gamma rays (which consist of particles of light, or photons)
  • Fission Labs | AI ML, Generative AI Cloud Engineering Services
    Partner with Fission Labs to implement AI architectures built on disciplined engineering, robust data foundations, and secure operational practices that ensure dependable results in real world environments
  • Basics of Nuclear Fission | Definitions | nuclear-power. com
    Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei) The fission process often produces free neutrons and photons (in the form of gamma rays) and releases a large amount of energy
  • Nuclear fission | Examples Process | Britannica
    Nuclear fission, subdivision of a heavy atomic nucleus, such as that of uranium or plutonium, into two fragments of roughly equal mass The process is accompanied by the release of a large amount of energy
  • Fission Surface Power - NASA
    Fission surface power can provide abundant and continuous power regardless of environmental conditions on the Moon and Mars NASA plans to demonstrate and use a fission surface power system on the Moon first, then Mars
  • Manhattan Project: The Discovery of Fission, 1938-1939
    Beginning with a single uranium nucleus, fission could not only produce substantial amounts of energy but could also lead to a reaction creating ever-increasing amounts of energy





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