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countable and uncountable, plural fissions
The process whereby one item splits to become two. examples
(nuclear physics) Short for nuclear fission: The process of splitting the nucleus of an atom into smaller particles. examples
(biology) The process by which a bacterium splits to form two daughter cells.
third-person singular simple present fissions, present participle fissioning, simple past and past participle fissioned
(transitive) To cause to undergo fission. examples
(intransitive) To undergo fission. examples