ctenidium

noun cte·nid·i·um \ -ēəm \

Definition of ctenidium

plural ctenidia \-ēə\
1 :the gill of a mollusk consisting typically of a respiratory structure that resembles a comb or feather, has a main stem with lateral lamellae, and is developed from the inner side of the mantle distinguished from ceras
2 :a structure consisting of a row of spines resembling the teeth of a comb on the head or thorax, or both, of certain fleas

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Origin and Etymology of ctenidium

New Latin, from cten- + -idium


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