1) Cephalopod 2) Cephalopod mollusk 3) Eight-armed mollusk 4) Having eight arms 5) Many-armed marine animal 6) Multi-armed mollusk 7) Paper nautilus 8) Tentacled mollusk 9) Well-armed critter 
• (n.) One of the Octocerata.
Oc'to·pod noun [ Greek ... eight- footed; ... eight + 
[n] - eight-armed cephalopod lacking an internal shell
octopod, octopodan, octopodous Eight-footed (with eight feet); an animal having eight feet; specifically, an octopus, or other member of the suborder Octopoda of cephalopods. An octopus/octopod is chasing a biped who is running for his life. —Word Info image © ALL rights reserved.
noun a cephalopod with eight arms but lacking an internal shell