nephridium

[ nuh-frid-ee-uhm ]
/ 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.

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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

Words nearby nephridium

nephrectasis, nephrectomize, nephrectomy, nephrelcosis, nephric, nephridium, nephrite, nephritic, nephritic syndrome, nephritis, nephritogenic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.