blue-ringed octopus

noun
\ -ˈriŋd-ˈäk-tə-pəs, -ˌpu̇s \

Medical Definition of blue-ringed octopus

: any of several venomous octopuses (genus Hapalochlaena) of the Indo-Pacific region that display brilliant blue rings on the skin when alarmed or agitated and are capable of inflicting a fatal bite due to the injection of tetrodotoxin

Learn More about blue-ringed octopus

Share blue-ringed octopus

Dictionary Entries near blue-ringed octopus

blue heaven

blue mold

blue nevus

blue-ringed octopus

blues

blue spot

bluetongue

Comments on blue-ringed octopus

What made you want to look up blue-ringed octopus? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

someone who never drinks alcohol

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!