noun (pl=octopuses, pl2=octopi, pl3=octopodes) (see usage note regarding plurals)
Etymology: From (unicode, á) (oktÅpous).
- Any of several marine molluscs/mollusks, of the family Octopodidae, having no internal or external protective shell or bone (unlike the nautilus, squid or cuttlefish) and eight arms each covered with suckers.
- (uncountable) Any of these marine molluscs eaten as food.
- (context, by extension) An organization that has many powerful branches controlled from the centre.
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Full Definition of octopus