Meaning of nephroblast in English:
nephroblast
Pronunciation /ˈnɛfrə(ʊ)blɑːst/ /ˈnɛfrə(ʊ)blast/
noun
Embryology
A primitive embryonic cell from which a nephridium or kidney develops.
Origin
Late 19th century; earliest use found in Edmund Beecher Wilson (1856–1939).