Nephridium

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Nephridium \Ne*phrid"i*um\, n.; pl. {Nephridia}. [NL., fr. Gr. ?
     of the kidneys.] (Zool. & Anat.)
     A segmental tubule; one of the tubules of the primitive
     urinogenital organs; a segmental organ. See Illust. under
     {Loeven's larva}.
     [1913 Webster]