Dictionary.com
Thesaurus.com

nephridium

American  
[nuh-frid-ee-uhm] / nəˈfrɪd i əm /

noun

Zoology.
  • nephridia
    plural
  1. 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.


nephridium British  
/ nɪˈfrɪdɪəm /

noun

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

"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

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of nephridium

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Beating cilia at the opening of the nephridium draw water from the coelom into a tubule.

From Textbooks Jun. 9, 2022

The nephridium is connected to the barrier separating the compartments, and consists of a long coil connected to a trumpet-like bell.

From Textbooks Jan. 1, 2015

A growth both of the funnel, which becomes multicellular, and of the rest of the nephridium produces the adult nephridia of the genera mentioned.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

The Polychaeta, however, present us with another form of nephridium seen, for example, in Arenicola, where a large funnel leads into a short and wide excretory tube whose lumen is intercellular.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

There are thus substantial reasons for believing that the nephridium grows backwards from a funnel as does the coelomoduct.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

For example, contractile vacuoles are common in microorganisms; flame cells and nephridia in certain species and worms, and Malpighian tubules in insects are other examples of excretory systems.

From Textbooks Jun. 9, 2022

Flame cells and nephridia in worms perform excretory functions and maintain osmotic balance.

From Textbooks Jun. 9, 2022

A pair of nephridia is present on each segment of the earthworm.

From Textbooks Jun. 9, 2022

Some terrestrial invertebrates, including annelids and mollusks, produce urine in nephridia.

From Textbooks Jan. 1, 2018

The anterior nephridia, of which there are one to three pairs, contrast with the posterior series by their small funnels and large size, the posterior nephridia having a large funnel followed by a short tube.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

Vocabulary.com logo
by dictionary.com

Join 14,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training