1. the splitting of an atomic nucleus into two or more parts, releasing energy
Usage: physics
2. the process of dividing or splitting into parts
Usage: formal
3. reproduction by the splitting of a cell or organism into two or more parts
Usage: biology

Examples

• Nuclear fission powers many electricity-generating plants.
• The fission of uranium atoms releases tremendous energy.
• Scientists studied the fission process in the laboratory.
• Binary fission is how bacteria reproduce.
• The amoeba undergoes fission to create two identical cells.
• Political fission within the party led to its collapse.
• The fission of the company created two separate businesses.