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metanephros definition

meta·neph·ros (met′ə nef′räs′)

noun pl. metanephroi -·roi′ (-ro̵i′)

the excretory organ lying behind the mesonephros in an embryo, which in mammals, reptiles, and birds develops into the permanent, or adult, kidney

Etymology: ModL < meta- + Gr nephros, kidney: see nephro-

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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