pronephros

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

Definition of pronephros 

: 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

Other Words from pronephros

pronephric \(ˌ)prō-ˈne-frik \ adjective

First Known Use of pronephros

1877, in the meaning defined above

History and Etymology for pronephros

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

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Dictionary Entries near pronephros

prone

prone float

pronephridiostome

pronephros

proneur

prong

prongbuck

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The first known use of pronephros was in 1877

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More Definitions for pronephros

pronephros

noun
pro·neph·ros | \(ˈ)prō-ˈnef-rəs, -ˌräs \
plural pronephroi\-ˌrȯi \

Medical Definition of pronephros 

: 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

More from Merriam-Webster on pronephros

Britannica.com: Encyclopedia article about pronephros

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