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mesonephros

[mez-uh-nef-ros, mes-, mee-zuh-, -suh-]
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noun, plural mes·o·neph·roi [mez-uh-nef-roi, mes-, mee-zuh-, -suh-] /ˌmɛz əˈnɛf rɔɪ, ˌmɛs-, ˌmi zə-, -sə-/. Embryology.
  1. one of the three embryonic excretory organs of vertebrates, becoming the functional kidney of fishes and amphibians and becoming part of the tubules or ductules in the reproductive systems of higher vertebrates.
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Origin of mesonephros

1875–80; < New Latin, equivalent to meso- meso- + Greek nephrós kidney
Related formsmes·o·neph·ric, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for mesonephric

Historical Examples

  • The mesonephric ducts (w.d), the other product of the segmental ducts of the kidneys.

    The Works of Francis Maitland Balfour, Volume III (of 4)

    Francis Maitland Balfour

  • The mesonephric duct receives the secretion of the anterior tubuli of the primitive mesonephros.

  • The mesonephric tubules, called also the Wolffian body, open into this duct.

    The Origin of Vertebrates

    Walter Holbrook Gaskell

  • From this original nephrocœle are formed the pronephric excretory organs, the mesonephric excretory organs, and the body-cavity.

    The Origin of Vertebrates

    Walter Holbrook Gaskell

  • They differ also from the mesonephric tubules by not being so clearly segmental with the myotomes.

    The Origin of Vertebrates

    Walter Holbrook Gaskell


British Dictionary definitions for mesonephric

mesonephros

noun
  1. the middle part of the embryonic kidney in vertebrates, becoming the adult kidney in fishes and amphibians and the epididymis in reptiles, birds, and mammalsSee also pronephros, metanephros
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Derived Formsmesonephric, adjective

Word Origin

C19: New Latin, from meso- + Greek nephros kidney
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

mesonephric in Medicine

mesonephros

(mĕz′ə-nĕfrəs, -rŏs′)
n. pl. mes•o•neph•roi (-nĕfroi′)
  1. The second of the three excretory organs that develop in a vertebrate embryo, replaced by the metanephros in higher vertebrates.wolffian body
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Related formsmes′o•nephric adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.