nephridium

[nuh-frid-ee-uhm]

noun

Zoology.

plural

nephridia 

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

/ nɪˈfrɪdɪəm /

noun

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

Other Word Forms

• nephridial adjective

Word History and Origins

Origin of nephridium¹

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

Word History and Origins

Origin of nephridium¹

C19: New Latin: little kidney

Example Sentences

Genital funnel. h, “Head kidney,” with second nephridium just below it. i, Intestine. l.m,

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In the male there are a right and a left protrusible penis in every genital segment, into which opens the nephridium and a sperm-sac.

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Male pore. n, Nephridium. o.m,

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Anterior superior lobe of the large nephridium. ks.l,

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The most important fact about them is that they disappear, and are in no way connected with the typical nephridium of the adult.

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