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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:

At the same time it possesses a totally distinct series of functional gills, which are not derived from the modification of the typical molluscan ctenidium.

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

Cephalic shield continuous with dorsal integument; no shell; ctenidium projecting from mantle cavity.

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

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

Spire of shell much reduced; a single ctenidium.

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

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

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

Thus the independent metamerism of certain organs in the Chitons is not primitive but acquired within the group: e.g. the shell valves and the ctenidia.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" by Various

Thus, then, we find that the limpet possesses a symmetrically disposed pair of ctenidia in a rudimentary condition, and justifies its position among Aspidobranchia.

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

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

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