Definition of synapsis in English:


Line breaks: syn|ap¦sis
Pronunciation: /sɪˈnapsɪs


[mass noun] Biology
  • The fusion of chromosome pairs at the start of meiosis.
    More example sentences
    • It has long been thought that the grouping of telomeres is important for chromosome pairing and subsequent synapsis.
    • It was proposed that these sites mediated the initial interactions between homologous chromosomes leading to synapsis and recombination.
    • These findings suggest that the extensive protein modification that occurs to prepare chromosomes for synapsis and recombination may provide at least a partial mechanism by which rereplication is blocked.


late 19th century: modern Latin, from Greek sunapsis 'connection, junction'.

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