- 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.
Origin of nephridium
Examples from the Web for nephridium
Historical Examples of nephridium
Such a nephridium from the ninth pair of legs is represented in fig. 28.
D, Lateral view showing the actual relation of the glandular and non-glandular sacs of the nephridium.
The figure is given to shew the peritoneal funnel of the nephridium.The Works of Francis Maitland Balfour, Volume IV (of 4)
Francis Maitland Balfour
Nephridium: The renal organ of mollusks, corresponding to kidneys in vertebrates.The Sea-beach at Ebb-tide
Augusta Foote Arnold
Close to the point where the vesicle joins the coiled section of the nephridium the former has a peculiar nick or bend in it.
- a simple excretory organ of many invertebrates, consisting of a tube through which waste products pass to the exterior
Word Origin for nephridium
(plural nephridia), 1877, Modern Latin, from Greek diminutive of nephros "kidney" (see nephron).
- The embryonic excretory organ from which the kidney develops.