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Webster 1913 Edition
Metanephros
‖
Metˊa-neph′ros
,Noun.
 [NL., fr. Gr. [GREEK] behind + [GREEK] kidney.] 
(Anat.) 
The most posterior of the three pairs of embryonic renal organs developed in many vertebrates. 
Definition 2025
metanephros
metanephros
English
Noun
metanephros (plural metanephroi or metanephroses)
- (anatomy) The most posterior of the three pairs of embryonic renal organs developed in many vertebrates.