Definition of scission in English:

scission

Line breaks: scis|sion
Pronunciation: /ˈsɪʃ(ə)n
 
/

noun

[mass noun] technical
  • 1The action or state of cutting or being cut, in particular:
    More example sentences
    • Budding and scission of a deflated vesicle into two smaller spherical daughters were sometimes observed.
    • The gift of her language, therefore, is not one of exfoliation, but of continual scission and concision.
    • The author argued that the scission between nature and culture is actually a false one, based on erroneous assumptions about the underlying ‘constitution’ of these bipolar terms.
  • 1.1chiefly Biochemistry Breakage of a chemical bond, especially one in a long chain molecule so that two smaller chains result: this bacteriophage catalyses scission of DNA strands
    More example sentences
    • Strand scission in DNA can result from the production of a carbon-based radical following hydrogen atom abstraction from deoxyribose.
    • Indeed, the assembled repair complex just before strand scission (loss of antibody binding) is composed of multiple subunits.
    • These trimetal clusters cleaved DNA through single-strand scission by use of UV light as the trigger.
  • 1.2 [count noun] A division or split between people or parties; a schism: a scission arose between the socialists and those further to the left
    More example sentences
    • For them increasing poverty and social scission seems at best a distant rumour.

Origin

late Middle English: from Old French, or from late Latin scissio(n-), from scindere 'cut, cleave'.

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a slit made by cutting with a saw