Leptonema

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The stage during meiosis Prophase 1 where the chromosomes condense after S-phase and interphase, resulting in the recombination of haploid chromosome pairs with sister chromatids held by a single non-dividing centromeres, and followed by the zygotene stage.

Synonyms

All synonyms
leptotene

Etymology

From lepto- (“thin”) + -nema (“filiform structure”).

Related phrases

prophase 1s phase

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.