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[ok-tuh-puh s]
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noun, plural oc·to·pus·es, oc·to·pi [ok-tuh-pahy] /ˈɒk təˌpaɪ/.
  1. any octopod of the genus Octopus, having a soft, oval body and eight sucker-bearing arms, living mostly at the bottom of the sea.
  2. something likened to an octopus, as an organization with many forms of far-reaching influence or control.
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Origin of octopus

1750–60; < New Latin < Greek oktṓpous (plural oktṓpodes) eight-footed; see octo-, -pod
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for octopus

business, company, partnership, society, enterprise, association, clan, shell, zoo, crowd, hookup, jungle, crew, gang, syndicate, mob, ring, outfit, bunch, octopus

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British Dictionary definitions for octopus


noun plural -puses
  1. 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)
  2. a powerful influential organization with far-reaching effects, esp harmful ones
  3. another name for spider (def. 8)
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Word Origin for octopus

C18: via New Latin from Greek oktōpous having eight feet
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

Word Origin and History for octopus


1758, genus name of a type of eight-armed cephalopod mollusks, from Greek oktopous, literally "eight-footed," from okto "eight" (see eight) + pous "foot" (see foot (n.)). Proper plural is octopodes, though octopuses probably works better in English. Octopi is from mistaken assumption that -us in this word is the Latin noun ending that takes -i in plural.

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Online Etymology Dictionary, © 2010 Douglas Harper