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pronephros

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noun pro·neph·ros \(ˌ)prō-ˈne-frəs, -ˌfräs\

Definition of pronephros

  1. :  either member of the first and most anterior pair of the three successive 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

pro·neph·ric play \-frik\ adjective


Origin of pronephros

New Latin, from Greek pro- + nephros kidney — more at nephritis


First Known Use: 1881


Medical Dictionary

pronephros

play
noun pro·neph·ros \(ˈ)prō-ˈnef-rəs, -ˌräs\

Medical Definition of pronephros

plural pro·neph·roi \-ˌrȯi\play

  1. :  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




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