• (n.pl.) A suborder of Cephalopoda including Octopus, Argonauta, and allied genera, having eight arms around the head; -- called also Octopoda.
Oc`to·cer'a·ta noun plural [ New Latin , from Greek ... eight + ..., a horn.] (Zoology) A suborder of Cephalopoda including Octopus, Argonauta, and allied genera, having eight arms around the head; -- called also Octopoda .