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

The Collaborative International Dictionary of English. 2000.

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