- 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 nephridia
Historical Examples of nephridia
The nephridia are not easily distinguished, though they are very numerous.A Guide for the Study of Animals
The function of the nephridia is to carry off waste matter from the fluid which fills the body-cavity.
Note the delicate membranous dark-colored sac on the floor of the pericardium, the kidneys or nephridia.
There are two organs, serving the function of kidneys, placed dorsally one upon each side of the body (nephridia).The Sea-beach at Ebb-tide
Augusta Foote Arnold
They consist as a rule of but few segments to most of which a pair of nephridia belong.Earthworms and their Allies
Frank E. Beddard
- 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.