(plural nephridia), 1877, Modern Latin, from Greek diminutive of nephros "kidney" (see nephron).
A segmental tubule; one of many tubules of this primitive urinogenital body organs; a segmental organ. See Illust. under Loeven's larva.
A growth both of the funnel, which becomes multicellular, and of the rest of the nephridium produces the adult nephridia of the genera mentioned.