Mesonephros



[mez-uh-nef-ros, mes-, mee-zuh-, -suh-] /ˌmɛz əˈnɛf rɒs, ˌmɛs-, ˌmi zə-, -sə-/

noun, plural mesonephroi
[mez-uh-nef-roi, mes-, mee-zuh-, -suh-] /ˌmɛz əˈnɛf rɔɪ, ˌmɛs-, ˌmi zə-, -sə-/ (Show IPA). Embryology.
1.
one of the three embryonic excretory organs of vertebrates, becoming the functional kidney of fishes and amphibians and becoming part of the tubules or ductules in the reproductive systems of higher vertebrates.
/ˌmɛsəʊˈnɛfrɒs/
noun
1.
the middle part of the embryonic kidney in vertebrates, becoming the adult kidney in fishes and amphibians and the epididymis in reptiles, birds, and mammals See also pronephros, metanephros

mesonephros mes·o·neph·ros (měz’ə-něf’rəs, -rŏs’, měs’-)
n. pl. mes·o·neph·roi (-něf’roi’)
The second of the three excretory organs that develop in a vertebrate embryo, replaced by the metanephros in higher vertebrates. Also called wolffian body.
mes’o·neph’ric adj.

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