nephridium
[nuh-frid-ee-uh m]
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noun, plural ne·phrid·i·a [nuh-frid-ee-uh] /nəˈfrɪd i ə/. Zoology.
the excretory organ of many invertebrates, consisting of a tubule with one end opening into the body cavity and the other opening into a pore at the body surface.
Origin of nephridium
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for nephridia
Historical Examples of nephridia
The nephridia are not easily distinguished, though they are very numerous.
A Guide for the Study of AnimalsWorrallo Whitney
The function of the nephridia is to carry off waste matter from the fluid which fills the body-cavity.
Elementary Zoology, Second EditionVernon L. Kellogg
Note the delicate membranous dark-colored sac on the floor of the pericardium, the kidneys or nephridia.
Elementary Zoology, Second EditionVernon L. Kellogg
There are two organs, serving the function of kidneys, placed dorsally one upon each side of the body (nephridia).
The Sea-beach at Ebb-tideAugusta Foote Arnold
They consist as a rule of but few segments to most of which a pair of nephridia belong.
Earthworms and their AlliesFrank E. Beddard
nephridium
noun plural -ia (-ɪə)
Word Origin for nephridium
C19: New Latin: little kidney
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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nephridium
Online Etymology Dictionary, © 2010 Douglas Harper
nephridium
[nə-frĭd′ē-əm]
n. pl. ne•phrid•i•a (-ē-ə)
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.