Nephridium
Pronunciation : Ne*phrid"i*um
Part of Speech : n.;
Etymology : [NL., fr. gr. kidneys.] (Zo?l. & Anat.)
Definition : Defn: A segmental tubule; one of the tubules of the primitive urinogenital organs; a segmental organ. See Illust. under Loeven's larva.
pl. Nephridia.
Source : Webster's Unabridged Dictionary, 1913