fission. They are opposing processes, and therefore very different. The process is accompanied by the release of a large amount of energy. 1. nuclear fission - a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy. Nuclear fission is the splitting of an atom's nucleus, thus creating two products of roughly half the mass of the original. Fission definition: Nuclear fission is the splitting of the nucleus of an atom to produce a large amount of... | Meaning, pronunciation, translations and examples The reason fission occurs is that energy upsets the balance between the electrostatic repulsion between positively-charged protons and the strong nuclear force that holds protons and neutrons together. Nuclear fission may take place spontaneously or may be induced by the excitation of the nucleus. Fission is a type of nuclear reaction that may occur spontaneously or as a result of a particle striking an atomic nucleus. fission fission of a uranium nucleus n. 1. Nuclear fission definition is - a process in which the nucleus of a heavy atom is split apart. nuclear fission the splitting of an atomic nucleus into approximately equal parts, either spontaneously or as a result of the impact of a particle usually with an associated release of energy Nuclear fission An extremely complex nuclear reaction representing a cataclysmic division of an atomic nucleus into two nuclei of comparable mass. This process releases a substantial amount of energy. Much more common is the fission induced by the capture of a neutron, a nuclear reaction which can be considered as a disintegration into two fragments of the nucleus, triggered by this capture. Simply put, fission is the division of one atom into two, and fusion is the combination of two lighter atoms into a larger one. Nuclear fission releases heat energy by splitting atoms. Nuclear Fission: Nuclear fission is the splitting of a nucleus into smaller particles, releasing a high amount of energy. Nuclear fission, subdivision of a heavy atomic nucleus, such as that of uranium or plutonium, into two fragments of roughly equal mass. During the process, some neutrons are also released. Natural Occurrence nuclear reaction - (physics) a process that alters the energy or structure or composition of atomic nuclei. Define fission. ‘Nuclear fusion reactions are like nuclear fission reactions, therefore, in the respect that some quantity of mass is transformed into energy.’ ‘The element can be prepared artificially in particle accelerators and is a byproduct of nuclear fission reactions.’ The word fission means "a splitting or breaking up into parts" (Merriam-Webster Online, www.m-w.com). Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei). fission synonyms, fission pronunciation, fission translation, English dictionary definition of fission. Nuclear Fusion: Nuclear fusion is the combination of two smaller atoms to create a large atom releasing energy. Difference Between Nuclear Fission and Fusion Definition. Nuclear fission is a process in nuclear physics in which the nucleus of an atom splits into two or more smaller nuclei as fission products, and usually some by-product particles. Search nuclear fission and thousands of other words in English definition and synonym dictionary from Reverso. Nuclear fission definition: the splitting of an atomic nucleus into approximately equal parts, either spontaneously... | Meaning, pronunciation, translations and examples In a nuclear reactor, a neutron is absorbed into a nucleus (typically uranium-235). Spontaneous nuclear fission is an extremely rare phenomenon.

The act or process of splitting into parts. nuclear fission noun the splitting of an atomic nucleus into approximately equal parts, either spontaneously or as a result of the impact of a particle usually with an associated release of energy Sometimes shortened to: fission … Nuclear fission is the splitting of a large atomic nucleus into smaller nuclei.