pronephric
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pro·neph·ros
(prō-nĕf′rəs, -rŏs′)n. pl. pro·neph·roi (-roi) or pro·neph·ra (-rə)
A kidneylike organ, being either part of the most anterior pair of three pairs of organs in a vertebrate embryo, disappearing early in the embryonic development of most vertebrates.
[pro- + Greek nephros, kidney.]
pro·neph′ric (-rĭk) adj.
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