Dictionary   FastHealth  Email This!

 


pro·neph·ros

npl  -neph*roi   :  either member of the first and most anterior pair of the three paired vertebrate renal organs that functions in the adults of amphioxus and some lampreys, functions temporarily in larval fishes and amphibians, and is present but nonfunctional in embryos of reptiles, birds, and mammals - compare MESONEPHROS METANEPHROS  .
 
   

 
Published under license with Merriam-Webster, Incorporated.  © 1997-2004.







               



               



St. Luke Hospital and Living Center (Marion, Kansas - Marion County)