asynapsis

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a·syn·ap·sis

 (ā′sĭ-năp′sĭs)
n. pl. a·syn·ap·ses (-sēz)
The failure of homologous chromosomes to pair during meiosis.

asynapsis

(ˌeɪsɪnˈæpsɪs)
n
(Biology) biology failure of pairing of chromosomes at meiosis

a•syn•ap•sis

(ˌeɪ sɪˈnæp sɪs)

n., pl. -ses (-sēz).
failure of the pairing of homologous chromosomes during meiosis.
[1925–30]