Definition of vas deferens in English:

vas deferens

Line breaks: vas def|er¦ens
Pronunciation: /ˈdɛfərɛnz

noun (plural vasa deferentia /ˌdɛfəˈrɛnʃɪə/)

The duct which conveys sperm from the testicle to the urethra.
More example sentences
  • During sexual activity, the sperm travels from the epididymis to the vas deferens with other glandular secretions.
  • These ducts carry the secretions produced by the seminal vesicle and the vas deferens.
  • Both fallopian tubes and vas deferens have the ability to rejoin after separation although this is an extremely rare occurrence.


late 16th century: from vas + Latin deferens 'carrying away', present participle of deferre.

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Pronunciation: dəˈmôrəˌlīz
cause (someone) to lose confidence or hope; dispirit