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单词 ctenidium
释义 ctenidium Zool.|tɪˈnɪdɪəm|
[mod.L., a. Gr. κτενίδιον, dim. of κτεν- (κτείς) a comb.]
Each of the respiratory organs or gills of Mollusca, consisting of an axis with a series of processes on each side like the teeth of a comb.
1883Ray Lankester in Encycl. Brit. XVI. 636/1 (Mollusca) These are the ctenidia or gill-combs. Usually..they play the part of gills, but since in many Molluscs (Lamellibranchs) their function is not mainly respiratory..it is well..to give them a non-physiological name such as that here proposed.1888Rolleston & Jackson Anim. Life 450 In the majority of Gastropoda the primitive left ctenidium is aborted.
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