blue-ringed octopus

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English

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greater blue-ringed octopus (Hapalochlaena lunulata) photographed by Elias Levy

Etymology

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blue +‎ ring +‎ octopus. From being an octopus with very prominent bright blue rings all over its body.

Noun

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blue-ringed octopus (plural blue-ringed octopuses or blue-ringed octopodes or blue-ringed octopi)

  1. Any octopus of the genus Hapalochlaena, with distinctive blue rings, that carry the highly poisonous venom tetrodotoxin (TTX).

References

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