D defs.my
Entry 3 senses Webster, 1913

Octopus

/äk'-təp-o͝osˌ/ · Oc·to·pus · IPA /ˈɑktəpʊs/
01 n. A genus of eight-armed cephalopods, including numerous species, some of them of large size. See Devilfish.
  1. 1.
    A genus of eight-armed cephalopods, including numerous species, some of them of large size. See Devilfish.(Zool.) See: Devilfish
  2. 2.
    Any member of the genus Octopus.(Zool.)
  3. 3.
    Something resembling an octopus in having numerous controlling arms or branches that reach widely and influence many activities; -- used mostly of organizations, such as diversified corporations.(Fig.)