The Australian octopus Octopus tetricus

A large species of octopus, Enteroctopus dofleini.

Any octopus of the genus Hapalochlaena, with distinctive blue rings, that carry the highly poisonous venom tetrodotoxin (TTX).

Haliphron atlanticus, a species of octopus, notable for its large size.

A species of octopus, endemic to bays and coastal waters of the tropical eastern Pacific, that has a striped body and spotted tentacles, and exhibits certain behaviours that distinguish it from other octopuses.

plural of octopus

Third-person singular simple present indicative form of octopus

Resembling or characteristic of an octopus, for example in having eight (or many) arms. / Widespread or able (from a central point) to control or manipulate many things.

(childish or endearing) An octopus.

plural of octopussy