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vas deferens

[vas def-uh-renz, -er-uh nz] /ˈvæs ˈdɛf əˌrɛnz, -ər ənz/
noun, plural vasa deferentia
[vey-suh def-uh-ren-shee-uh, -shuh] /ˈveɪ sə ˌdɛf əˈrɛn ʃi ə, -ʃə/ (Show IPA).
Anatomy, Zoology
1.
the duct that transports the sperm from the epididymis to the penis.
See also vas efferens.
Origin
1880-1885
1880-85; < Neo-Latin vās dēferēns literally, ‘vessel for carrying off’. See vas, deferent2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for vasa defer-entia

vas deferens

/ˈvæs ˈdɛfəˌrɛnz/
noun (pl) vasa deferentia (ˈveɪsə ˌdɛfəˈrɛnʃɪə)
1.
(anatomy) the duct that conveys spermatozoa from the epididymis to the urethra
Word Origin
C16: from New Latin, from Latin vās vessel + deferēns, present participle of deferre to bear away
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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vasa defer-entia in Medicine

vas deferens vas def·er·ens (vās' děf'ər-ənz, -ə-rěnz')
n. pl. vasa def·er·en·ti·a (děf'ə-rěn'shē-ə)
The main secretory duct of the testicle, through which semen is carried from the epididymis to the prostatic urethra, where it ends as the ejaculatory duct. Also called deferent duct, spermatic duct, spermiduct.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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vasa defer-entia in Science
vas deferens
  (vās' děf'ə-rěnz')   
Plural vasa deferentia (vā'zə děf'ə-rěn'shē-ə)
Either of two ducts through which sperm passes from a testis to the outside of the body. In mammals, the vas deferens connects the testis to the urethra.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for vasa defer-entia

vas deferens

thick-walled tube in the male reproductive system that transports sperm cells from the epididymis, where the sperm are stored prior to ejaculation. Each ductus deferens ends in an enlarged portion, an ampulla, which acts as a reservoir. There are two ductus deferentes, identical in structure and function, which emerge from the two epididymides.

Learn more about vas deferens with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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