Dictionary
met•a•neph•ros
Pronunciation: (met"u-nef'ros), [key]—
n.,
—pl. -roiPronunciation: (-roi). [key]
Embryol.
one of the three embryonic excretory organs of higher vertebrates, becoming the permanent and functional kidney. Cf.
mesonephros, pronephros. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.