nephridium

[ nuh-frid-ee-uh m ]

/ nəˈfrɪd i əm /

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.

Words nearby nephridium

nephrectasis, nephrectomize, nephrectomy, nephrelcosis, nephric, nephridium, nephrite, nephritic, nephritic syndrome, nephritis, nephritogenic

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. 2020

Examples from the Web for nephridium

There are thus substantial reasons for believing that the nephridium grows backwards from a funnel as does the coelomoduct.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7|Various
The figure is given to shew the peritoneal funnel of the nephridium.
The Works of Francis Maitland Balfour, Volume IV (of 4)|Francis Maitland Balfour
Close to the point where the vesicle joins the coiled section of the nephridium the former has a peculiar nick or bend in it.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour
Externally, the nephridium opens by a vesicle, as in many Oligochaetes whose lumen is intercellular.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7|Various

D, Lateral view showing the actual relation of the glandular and non-glandular sacs of the nephridium.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 1|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.