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ctenidium

American  
[ti-nid-ee-uhm] / tɪˈnɪd i əm /

noun

Zoology.
  • ctenidia
    plural
  1. any of various comblike or featherlike structures, as the row of stiff bristles on the legs of a psocid.


ctenidium British  
/ tɪˈnɪdɪəm /

noun

  1. one of the comblike respiratory gills of molluscs

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of ctenidium

From New Latin, dating back to 1880–85; see origin at cteno-, -idium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

No ctenidium, but a pulmonary cavity; heart with a single auricle, not traversed by the rectum.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

Spiral fibre: the spiral thickening or folding of the chitinous lining of a trachea, which gives to the latter its characteristic microscopic appearance as well as its support and elasticity:= ctenidium.

From Explanation of Terms Used in Entomology by John. B. Smith

Shell external and conical; anterior tentacles form a frontal veil; ctenidium extending only over right side; a distinct osphradium.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

The gill-plume, which in Aplysia is the typical Molluscan ctenidium, is seen in fig.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

The freely projecting ctenidium of typical form not having its axis fused to the roof of the branchial chamber is the notable character of this genus.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

Respiration is facilitated by a pair of ctenidia, whereas excretion and osmoregulation are brought about by a pair of nephridia.

From Textbooks Jan. 1, 2015

They exchange gases using a pair of ctenidia, and excretion and osmoregulation are carried out by a pair of nephridia.

From Textbooks Apr. 25, 2013

The existence of two pairs of ctenidia and of two pairs of renal sacs in Nautilus, placed one behind the other, is highly remarkable.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various

No ctenidia but pallial branchiae in a circle between mantle and foot.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

Two pairs of ctenidia, and two pairs of renal tubes without reno-pericardial apertures.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various

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