nephridium
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
1Other words from nephridium
- ne·phrid·i·al, adjective
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How to use nephridium in a sentence
It will be convenient to commence with one of the hinder nephridia.
The Works of Francis Maitland Balfour, Volume 1 | Francis Maitland BalfourPortion of segmental organ of 4th and 5th legs, corresponding to vesicle of the other nephridia.
The Works of Francis Maitland Balfour, Volume IV (of 4) | Francis Maitland BalfourThe addition of a primitive vascular system and a pair of nephridia, or excretory organs, is first met with in the Nemertines.
The Last Link | Ernst HaeckelAmong the Terebelloidea there is a remarkable differentiation of the nephridia into two series.
There is usually a gap between the two series, several segments being without nephridia.
British Dictionary definitions for nephridium
/ (nɪˈfrɪdɪəm) /
a simple excretory organ of many invertebrates, consisting of a tube through which waste products pass to the exterior
Origin of nephridium
1Derived forms of nephridium
- nephridial, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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