[vas def-uh-renz, -er-uh nz]
- the duct that transports the sperm from the epididymis to the penis.
See also vas efferens.
Origin of vas deferens
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- anatomy the duct that conveys spermatozoa from the epididymis to the urethra
C16: from New Latin, from Latin vās vessel + deferēns, present participle of deferre to bear away
vas deferens(văs′ dĕf′ər-ənz, -ə-rĕnz′)
- 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.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.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.