from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The main duct through which semen is carried from the epididymis to the ejaculatory duct.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The duct in the testicle that carries semen from the epididymis to the ejaculatory duct.

from the GNU version of the Collaborative International Dictionary of English

  • n. The excretory duct of a testicle; a spermatic duct.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a duct that carries spermatozoa from the epididymis to the ejaculatory duct


New Latin vās dēferēns : vās, duct + Latin dēferēns, present participle of dēferre, to carry away.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin vās ("vessel, duct") + dēferēns ("carrying off"), present active participle of dēferō ("carry off"). (Wiktionary)


Sorry, no example sentences found.


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  • We're very much on the deferensive.

    June 24, 2008

  • The spectre of overpopulation has made sperm superfluous bilby - but not males hopefully. We still have value, don't we?

    June 24, 2008

  • All this - a microchipped oldfeller and a horde of sperm ready for a holiday but finding the departure gate locked - sounds excruciating.

    June 24, 2008

  • I don't know...the vibration might be a selling point. Exhaust, well, that's kind of redundant, isn't it? And noise -- give her an iPod.

    June 24, 2008

  • An implantable sump pump would be ideal dc. Of course the guy receiving it would have to prepare an environmental impact report & have his neighborhood re-zoned light industrial.
    Hopefully sump pumps don't produce much exhaust, noise or vibration.

    June 24, 2008

  • I'm thinking someone would need a sump-pump pretty quick... *thinking there's a dirty (dirtier) joke in there somewhere...*

    June 24, 2008

  • Umm, where do the sperm end up then?

    June 24, 2008

  • I wonder if it works the other way? Could be handy in the porn trade.

    June 23, 2008

  • "If you've ever worried about the environmental impact of all those discarded latex condoms, this might be the super-futuristic invention for you! Australian scientists have apparently figured out how to insert a microchip in the vas deferens (that's the part of the male equipment that delivers semen), and when the man is about to have sex, he can press "pause" on a device that sends RF waves to his intimate microchip. The chip translates the waves into acoustic waves, which then cause the chip to expand, blocking sperm from passing through the vas deferens."
    - anon, 'Put a microchip in your penis' on, 13 June 2008.

    June 23, 2008