Definition of Nephridium

1. n. A segmental tubule; one of the tubules of the primitive urinogenital organs; a segmental organ. See Illust. under Loeven's larva.

Definition of Nephridium

1. Noun. (biology) a tubular excretory organ in some invertebrates ¹

2. Noun. (anatomy) the embryonic excretory organ that develops into the kidney ¹

¹ Source: wiktionary.com

Definition of Nephridium

1. [n -DIA]

Medical Definition of Nephridium

1. Origin: NL, fr. Gr. Of the kidneys. A segmental tubule; one of the tubules of the primitive urinogenital organs; a segmental organ. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Nephridium

nephratonia
nephrectomies
nephrectomize
nephrectomized
nephrectomizes
nephrectomizing
nephrectomy
nephredema
nephrelcosis
nephric
nephric blastema
nephric duct
nephridia
nephridial
nephridiopore
nephrin
nephrins
nephrism
nephrisms
nephrite
nephrites
nephritic
nephritic calculus
nephritic factor
nephritic syndrome
nephritical
nephritick
nephritics
nephritides

Literary usage of Nephridium

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text-book of Zoology by Thomas Jeffery Parker, William Aitcheson Haswell (1921)
"Each nephridium (Fig. 755) is a bent tube consisting of an anterior ... The organ thus closely corresponds to the type of nephridium with closed inner end ..."

2. Lessons in elementary biology by Thomas Jeffery Parker (1898)
"nephridium (Fig. 68) is an extremely delicate tube consisting of two divisions bent at right ... A nephridium may therefore be defined as a ciliated tube, ..."

3. Amphioxus and the Ancestry of the Vertebrates by Arthur Willey (1894)
"Hatschek interprets this structure as a nephridium. Its true physiological, and especially its morphological, significance is, however, very perplexing and ..."

4. The Encyclopedia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1910)
"The cavity of the latter is coelom. the terminal vesicle of the nephridium, and doubtfully the glandular part of the tube is derived. ..."

5. The Encyclopaedia Britannica: “a” Dictionary of Arts, Sciences, Literature edited by Hugh Chisholm (1910)
"The name " nephridium " was originally given by Sir E. Ray ... whose figures show a derivation of the entire nephridium from mesoblast, and an absence of ..."

6. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General by Thomas Spencer Baynes (1888)
"Each nephridium, after being bent upon itself as shown in fig. 143, C, D, opens to the exterior by a pore placed at the point marked 'a ¡a fig. ..."

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