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sea snake

American

noun

any of several venomous marine snakes of the family Hydrophidae, having a finlike tail.

sea snake British

noun

any venomous snake of the family Hydrophiidae, of tropical seas, that swims by means of a laterally compressed oarlike tail

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of sea snake

First recorded in 1745–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Antivenom is also given to the Royal Flying Doctors, who access some of the nation's most remote communities, as well as Australian navy and cargo ships for sailors at risk of sea snake bites.

From BBC • May 16, 2025

You can see some of the surprising new finds on the citizen science project Redmap, such as sightings of the tropical yellow bellied sea snake in Tasmanian waters.

From Salon • Nov. 28, 2022

If you are ever scuba diving and a 6-foot-long sea snake comes storming out of the shadows, here is what you should know.

From Seattle Times • Aug. 19, 2021

And a yellow-bellied sea snake has migrated to the habitat.

From Washington Post • Dec. 26, 2019

At first he thought he was looking at some kind of pregnant sea snake or a constipated eel.

From "Crash" by Jerry Spinelli

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023