'pachytene' definitions:

Definition of 'pachytene'

(from WordNet)
noun
The third stage of the prophase of meiosis

Definition of 'pachytene'

From: GCIDE
  • pachytene \pachytene\ n. (Biol.) The third stage of the prophase of meiosis, the stage in which the pairing of homologous chromosomes has been completed. [WordNet 1.5]