Word.ws English Dictionary

blue-ringed octopi

blue-ringed octopi is the plural of blue-ringed octopus.

Meaning of blue-ringed octopus

Noun

blue-ringed octopus (plural blue-ringed octopuses or (nonstandard) blue-ringed octopusses or (nonstandard) blue-ringed octopi or (nonstandard) blue-ringed octopii or (rare) blue-ringed octopodes or (rare, nonstandard) blue-ringed octopus)

  1. Any member of any species of the genus Hapalochlaena of octopuses, with distinctive blue rings, that carry the highly poisonous venom tetrodotoxin (TTX).
    • In terms of diversity, cephalopods include the egg case making argonauts, shelled nautiluses, venomous blue-ringed octopuses and enigmatic giants like the giant and colossal squid. […] The blue-ringed octopus Hapalochlaena lunulata has tetrodotoxin, the deadly toxin it also releases in a bite, in...2017 August 9, Mark Carnall, “Why do cephalopods produce ink? And what's ink made of, anyway?”, in The Guardian, archived from the original on 15 Mar 2023

Questions about blue-ringed octopi

What is blue-ringed octopi the plural of?
Blue-ringed octopi is the plural of blue-ringed octopus.

Words near blue-ringed octopi in the dictionary

  1. blue-plate specials
  2. blue-print
  3. blue-prints
  4. blue-red
  5. blue-ribbon
  6. blue-ringed octopi
  7. blue-ringed octopii
  8. blue-ringed octopodes
  9. blue-ringed octopus
  10. blue-ringed octopuses
  11. blue-ringed octopusses

Source and license

Adapted from Wiktionary: blue-ringed octopi (page history and authors); blue-ringed octopus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “blue-ringed octopi.” Word.ws, https://word.ws/blue-ringed_octopi. Based on Wiktionary, CC BY-SA 4.0.