sea snake

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Related to Seasnake: Sea krait

sea snake

n.
Any of various venomous aquatic snakes of the family Elapidae (or Hydrophiidae) that inhabit tropical waters of the Pacific and Indian Oceans and that bear live offspring.
Any of the venomous elapid snakes that inhabit warm coastal waters from the Indian Ocean to the Pacific.
Toxicology Envenomation bites are usually painless and may not even be noticed when contact is made