Oc·top·o·da | \ äkˈtäpədə\
Definition of Octopoda
: an order of cephalopod mollusks (subclass Dibranchia) comprising the octopuses, argonauts, and related mollusks that have eight arms with sessile suckers devoid of horny rims and that often have vestiges of an internal shell but have an external shell only in the argonaut
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