any octopod of the genus Octopus, having a soft, oval body and eight sucker-bearing arms, living mostly at the bottom of the sea.
something likened to an octopus, as an organization with many forms of far-reaching influence or control.
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How to use octopus in a sentence
A good many jelly-fish are thrown up; some gelatinous animals of a large size perhaps were octopi.Wintering in the Riviera | William Miller
Huge Assam rubber-trees have exposed roots suggesting a tangle of octopi.East of Suez | Frederic Courtland Penfield
Crabs were broiling upon it, and the pieces of the feke were flung beside them and the smaller octopi.White Shadows in the South Seas | Frederick O'Brien
Polpi alla Luciana are small octopi stewed in an earthern pot with oil, tomatoes, chilli, and red wine.The Gourmet's Guide to Europe | Algernon Bastard
The choice between the octopi and retreat stared him in the face.Astounding Stories, February, 1931 | Various
British Dictionary definitions for octopus
any cephalopod mollusc of the genera Octopus, Eledone, etc, having a soft oval body with eight long suckered tentacles and occurring at the sea bottom: order Octopoda (octopods)
a powerful influential organization with far-reaching effects, esp harmful ones
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012