plural noun Di·bran·chia \dīˈbraŋkēə\

Definition of Dibranchia

  1. :  a subclass or order of Cephalopoda including the squids and octopuses, being characterized by 2 gills, 2 auricles, 2 nephridia, an apparatus for emitting an inky fluid, and either 8 or 10 cephalic arms bearing suckers or hooks, and comprising all living cephalopods except those of the genus Nautilus


adjective or noun

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Origin and Etymology of dibranchia

New Latin, from di- + Greek branchia gills — more at branchia

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capable of being understood in two ways

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