Fission

Fission, a splitting of something into two or more parts, may refer to:

Biology

 * Fission (biology), division of a single entity into two or more parts and the regeneration of those parts into separate entities resembling the original
 * Mitochondrial fission, in biology

Nuclear physics

 * Nuclear fission, when the nucleus of an atom splits into smaller parts
 * Cold fission
 * Fast fission
 * Spontaneous fission
 * Ternary fission

Other

 * Loop fission, in computer science
 * Singlet fission, in spectroscopy
 * Fission (band), a Swedish death metal band
 * Fission (album), by Jens Johansson