nephridium

[ nuh-frid-ee-uhm ]

noun

, Zoology.

, plural ne·phrid·i·a [n, uh, -, frid, -ee-, uh].

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

Derived Forms

• neˈphridial, adjective

Other Words From

• ne·phridi·al 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

Portion of nephridium of the hindermost leg of Peripatus capensis, seen in longitudinal and vertical section.

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

D, Optical section of a branch of the nephridium of Nephthys scolopendroides.

From Project Gutenberg

Externally, the nephridium opens by a vesicle, as in many Oligochaetes whose lumen is intercellular.

From Project Gutenberg