fission
About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.
About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.1fis·sion
noun \ˈfi-shən, -zhən\Definition of FISSION
1
: a splitting or breaking up into parts
2
: reproduction by spontaneous division of the body into two or more parts each of which grows into a complete organism
3
: the splitting of an atomic nucleus resulting in the release of large amounts of energy
— fis·sion·al \-shə-nəl, -zhə-\ adjective
See Origin of FISSION
Latin fission-, fissio, from findere to split — more at bite
First Known Use: circa 1617
2fission
verbDefinition of FISSION
intransitive verb
: to undergo fission
transitive verb
: to cause to undergo fission
First Known Use of FISSION
1929
fis·sion
noun \ˈfish-ən also ˈfizh-\ (Medical Dictionary)Medical Definition of FISSION
1
: a method of reproduction in which a living cell or body divides into two or more parts each of which grows into a whole new individual
2
a : cleavage 2 b : the splitting of an atomic nucleus resulting in the release of large amounts of energy—called also nuclear fission
—fis·sion verb, fis·sioned fis·sion·ing \ˈfish-(ə-)niŋ also ˈfizh-\
—fis·sion·al \ˈfish-ən-əl also ˈfizh-\ adjective
Learn More About FISSION
Browse
Next Word in the Dictionary: fissionable
Previous Word in the Dictionary: Fissilinguia
All Words Near: fission
Previous Word in the Dictionary: Fissilinguia
All Words Near: fission
Seen & Heard 
What made you want to look up fission? Please tell us where you read or heard it (including the quote, if possible).
