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Definitions from WordNet

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Fissionable

Definition: Fissionable refers to a substance that is capable of undergoing nuclear fission, a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei, releasing a tremendous amount of energy.

Part of speech: Adjective

Examples:

Sense 1: Pertaining to substances capable of undergoing nuclear fission

• The uranium-235 isotope is highly fissionable, making it suitable for use in nuclear reactors.
• Plutonium-239, another fissionable material, is extensively used in nuclear weapons.

Sense 2: Having the potential to cause a split or division

• The controversial move by the politician had a fissionable effect on the party, causing disagreements among its members.
• Some topics can be fissionable, leading to heated debates and dividing public opinion.

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