fission
UK[ˈfɪʃn]US[ˈfɪʃn]
n
The action of splitting or being split into two or more parts.
n
A nuclear reaction in which an atomic nucleus splits into smaller nuclei and releases a large amount of energy.
Morpheme Breakdown
fiss
ion
fiss
split
ion
noun suffix
Etymology
The word 'fission' originates from the Latin verb findere, meaning 'to split or cleave'. Its past participle, fissus, provides the root 'fiss-', which directly conveys the core concept of division. The suffix '-ion' was added to form a noun describing the action or process of splitting. While initially used in biological contexts (e.g., cell fission), its most prominent modern application in nuclear physics emerged in the 20th century, describing the splitting of atomic nuclei, yet it retains the original Latin sense of a forceful division.
Analysis
Structure: fiss (split) + ion (noun suffix)
fiss (from Latin fissus, past participle of findere, meaning 'to split'), ion (a suffix of Latin origin forming nouns denoting action or condition).
Examples
Nuclear fission is the process that powers many reactors.
The biologist observed the fission of the single-celled organism.
The political movement led to the fission of the main party into several factions.