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metanephros
[met-uh-nef-ros]
noun
plural
metanephroione of the three embryonic excretory organs of higher vertebrates, becoming the permanent and functional kidney.
metanephros
/ ˌɛəˈɛڰɒ /
noun
the last-formed posterior part of the embryonic kidney in reptiles, birds, and mammals, which remains functional in the adult See also pronephros mesonephros
Other Word Forms
- metanephric adjective
Word History and Origins
Origin of metanephros1
Word History and Origins
Origin of metanephros1
Example Sentences
The more complete replacements, such as the nephridia of the genital segment of Tubifex by a subsequently formed genital duct, may be compared with the succession of the nesonephros to the pronephros in vertebrates, and of the metanephros to the mesonephros in the higher vertebrates.
Mt. and Mt.d., the metanephros and metanephric duct, become the functional kidney and ureter in both sexes.
Metanephros and duct, not clearly marked off from Mesonephros.
Mesonephros and Metanephros, the kidney, and their unseparated ducts, the ureters.
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