Related Terms. Ratio of the density of a substance at 20Â°C or 68Â°F to the density of water at 4Â°C or 39.2Â°F.
Nuclear fission. NUCLEAR FISSION. Nuclear fission is a reaction in which an atom's nucleus is broken apart, releasing a tremendous amount of energy. Nuclear fission is used in many power plants on Earth (and is used in atomic weapons). nuclear fission: Reaction that splits nuclei into less massive fragments.nuclear fusion: Reaction that joins the nuclei of atoms to form more massive nuclei. - (n.). The splitting of an atomic nucleus into two large fragments. nuclear fusion - (n.) ... ~ reactors naturally produce free neutron s; their role is to sustain the energy-producing chain reaction.
Fission. a type of cell division in which overall (i.e., not localised) cell growth is followed by septum formation which typically divides the fully grown cell into two similar or identical cells. Please contribute to this project, if you have more information about this term feel free to edit this page. This page was last modified on 24 March 2011, at 04:49.This page has been accessed 22,848 times. What links here | Related changes | Permanent link.