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.

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nephridium British  

/ nɪˈfrɪdɪəm /

noun

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

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Other Word Forms

Derived Forms

• nephridial
  adjective

Inflected Forms

noun

• nephridia
  plural

Etymology

Origin of nephridium

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

Example Sentences

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

C, Small portion of the nephridium of Glycera siphonostoma, showing the canal cut through, and the solenocytes on the outer surface.

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

Near this and less advanced into the branchial chamber is the single renal organ or nephridium r with its opening to the exterior r′.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

No viscero-pericardial pores are present on the surface of the pallial chamber, since in the Dibranchiata the viscero-pericardial sac opens by a pore into each nephridium instead of directly to the surface.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various