Etymology

vas deferens

Today it means: The duct in the testicle that carries semen from the epididymis to the ejaculatory duct. Full definition →

New Latin vās dēferēns
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The story

  1. New Latin · derived fromvās dēferēns
  2. English todayvas deferens

From New Latin vās dēferēns, itself from vās (“vessel, duct”) + dēferēns (“carrying off”, present active participle of dēferō (“to carry off”)).

Etymology from Wiktionary, CC BY-SA 4.0.