nephridium

[ nuh-frid-ee-uhm ]

/ nəˈfrɪd i əm /

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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.

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Origin of nephridium

From New Latin, dating back to 1875–80; see origin at nephr-, -idium

OTHER WORDS FROM nephridium

ne·phrid·i·al, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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 Balfour
Portion 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 Balfour
The 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 Haeckel
Among the Terebelloidea there is a remarkable differentiation of the nephridia into two series.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7|Various

There is usually a gap between the two series, several segments being without nephridia.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7|Various

British Dictionary definitions for nephridium

nephridium

/ (nɪˈfrɪdɪəm) /

noun plural -ia (-ɪə)

a simple excretory organ of many invertebrates, consisting of a tube through which waste products pass to the exterior

Derived forms of nephridium

nephridial, adjective

Word Origin for nephridium

C19: New Latin: little kidney

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

Medical definitions for nephridium

nephridium

[ nə-frĭd′ē-əm ]

n. pl. ne•phrid•i•a (-ē-ə)

The embryonic excretory organ from which the kidney develops.