Definition of cephalopod
: any of a class (Cephalopoda) of marine mollusks including the squids, cuttlefishes, and octopuses that move by expelling water from a tubular siphon under the head and that have a group of muscular usually sucker-bearing arms around the front of the head, highly developed eyes, and usually a sac containing ink which is ejected for defense or concealment
Recent Examples of cephalopod from the Web
To start your Hall of Fishes tour with a bang, stop by the Pacific Octopus tank, where the curious cephalopod spends a lot of time pressed up against the glass.
Long ago, the ancestors of octopuses, and indeed the ancestors of all other cephalopods like cuttlefish and squid, took refuge in the safety of their shells.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cephalopod'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of cephalopod
ultimately from cephal- + Greek pod-, pous foot — more at foot
First Known Use: 1826
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