The octopus is a cephalopod mollusc of the order Octopoda. It has two eyes and four pairs of arms and, like other cephalopods, it is bilaterally symmetric. It has a beak, with its mouth at the center point of the arms.
Some authoritative sources consider octopuses to be the only acceptable plural form of octopus, while other sources also recognize octopi and rarely octopodes.
The octopus is a cephalopod of the order Octopoda that inhabits many diverse regions of the ocean, especially coral reefs. The term may also refer to only those creatures in the genus Octopus.
From Ancient Greek ὀκτώπους (oktṓpous), from ὀκτώ (oktṓ, “eight”) + πούς (poús, “foot”). (Received Pronunciation) IPA(key): /ˈɒkt.ə.pʊs/, /ˈɒk.tə.pəs/. (General American) IPA(key): /ˈɑːkt.ə.pʊs/, /ˈɑːk.tə.pəs/. octopus (plural octopuses or octopi or octopodes) (see usage notes).
The Octopus: The word octopus means "eight feet." Octopuses are solitary, eight-armed animals that live on the ocean floor. There are over 100 different species of octopuses.
An octopus has a round head and a mantle along with eight arms. The arms are endowed with one or two rows of suckers but these never have hooks or sucker rings.
1. (Animals) 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).
any octopod of the genus Octopus, having a soft, oval body and eight sucker-bearing arms, living mostly at the bottom of the sea.
An octopus has a hard beak, with its mouth at the center point of the arms. Octopuses have no internal or external skeleton...
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