Dictionary

mesonephros

noun me·so·neph·ros \ˌme-zə-ˈne-frəs, ˌmē-, -sə-, -ˌfräs\
plural me·so·neph·roi\-ˌfri\

Definition of MESONEPHROS

:  either member of the second and midmost of the three paired vertebrate renal organs that functions in adult fishes and amphibians but functions only in the embryo of reptiles, birds, and mammals in which it is replaced by a metanephros in the adult — compare metanephros, pronephros
me·so·neph·ric \-frik\ adjective

Origin of MESONEPHROS

New Latin, from mes- + Greek nephros kidney — more at nephritis
First Known Use: 1887

mesonephros

noun me·so·neph·ros \ˌmez-ə-ˈnef-rəs, ˌmēz-, ˌmēs-, ˌmes-, -ˌräs\   (Medical Dictionary)
plural me·so·neph·roi \-ˌri\

Medical Definition of MESONEPHROS

:  either member of the second and midmost of the three paired vertebrate renal organs that functions in adult fishes and amphibians but functions only in the embryo of reptiles, birds, and mammals in which it is replaced by a metanephros in the adult—called also Wolffian body; compare pronephros

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