ctenidium

(tĭ-nĭdˈē-əm)

cte·nid·i·um

noun pl. cte·nid·i·a (-ē-ə)
Zoology

A comblike structure, such as the respiratory apparatus of a mollusk or a row of spines in some insects.

Origin: New Latin, from Greek kteis, kten-, comb.

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