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English

fissions

|fiss-ions|

C1

🇺🇸

/ˈfɪʃ.ənz/

🇬🇧

/ˈfɪʃ(ə)nz/

(fission)

splitting

Base FormPlural3rd Person Sing.PastPast ParticiplePresent Participle
fissionfissionsfissionsfissionedfissionedfissioning
Etymology
Etymology Information

'fission' originates from Latin, specifically the word 'fissio,' where the root 'findere' meant 'to split.'

Historical Evolution

'fission' changed from the Latin noun 'fissio' (derived from 'findere') into scientific New Latin and was later adopted into English as 'fission' in modern scientific usage (established usage expanded notably in the 19th and 20th centuries with biological and nuclear contexts).

Meaning Changes

Initially, it meant 'a splitting or cleaving,' but over time it evolved into the current specialized senses of 'splitting' used in biology and nuclear physics (and figuratively for group divisions).

Meanings by Part of Speech

Noun 1

the process or action of splitting into two or more parts, especially the splitting of an atomic nucleus releasing energy (in physics).

The reactor recorded several fissions during the experiment.

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Noun 2

a form of asexual reproduction or division in biology where a cell or organism splits into two or more separate entities (e.g., binary fission).

Many single-celled organisms reproduce by fissions under favorable conditions.

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Noun 3

a figurative splitting or division within a group, organization, or movement (political or social schism).

Political fissions within the party led to several prominent departures.

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Verb 1

third person singular present form of 'fission': to undergo or cause to undergo fission; to split apart.

Under certain conditions, the cell fissions more rapidly.

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Last updated: 2025/12/11 15:18