Definify.com
Webster 1913 Edition
Fission
1.
A cleaving, splitting, or breaking up into parts.
2.
(Biol.)
A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage of the into two parts, each of which then becomes a separate and independent organisms; as when a cell in an animal or plant, or its germ, undergoes a spontaneous division, and the parts again subdivide. See
Segmentation
, and Cell division
, under Division
. 3.
(Zool.)
A process by which certain coral polyps, echinoderms, annelids, etc., spontaneously subdivide, each individual thus forming two or more new ones. See
Strobilation
. Definition 2024
fission
fission
English
Noun
fission (countable and uncountable, plural fissions)
- The process whereby one item splits to become two.
- (physics) The process of splitting the nucleus of an atom into smaller particles; nuclear fission
- (biology) The process by which a bacterium splits to form two daughter cells.
Antonyms
- (process of splitting the nucleus of an atom): fusion
Translations
process whereby one item splits to become two
process of splitting an atom
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process by which a bacterium splits into two
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Derived terms
Derived terms
Verb
fission (third-person singular simple present fissions, present participle fissioning, simple past and past participle fissioned)
- To cause to undergo fission.
- (intransitive) To undergo fission.
Translations
to cause to undergo fission
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French
Etymology
Borrowing from Latin fissiō, fissiōnem.
Pronunciation
- IPA(key): /fi.sjɔ̃/
Noun
fission f (plural fissions)