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WordReference Random House Unabridged Dictionary of American English © 2024pach•y•tene (pak′i tēn),USA pronunciation n. [Cell Biol.]- Genetics, Cell Biologythe third stage of prophase in meiosis, during which each chromosome pair separates into sister chromatids with some breakage and crossing over of genes.
Also, pach•y•ne•ma (pak′ə nē′mə).USA pronunciation - French pachytène (1900), equivalent. to Greek pachý(s) thick + -tène -tene
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