bursa copulatrix

noun
bursa cop·​u·​la·​trix | \ -ˌkäp-yə-ˈlā-triks How to pronounce bursa copulatrix (audio) \

Medical Definition of bursa copulatrix

: a thin fan or bell-shaped expansion of the cuticle of the tail of many male nematode worms that functions as a copulatory structure

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