Synonyms of 'fission'
splittingDictionary, parting, breaking
a fission in the earth's crust
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A division is a significant distinction or argument between two groups, which causes the two groups to be considered as very different and separate.
the division between the prosperous west and the impoverished east
Through a parting in the mist, we saw a huddle of buildings.
If there is a rupture between people, relations between them get much worse or end completely.
a major rupture between the two countries
Thesaurus for fission from the Collins English Thesaurus
Nuclear fission is the splitting of the nucleus of an atom to produce a large amount of energy or cause a large explosion .