sea turtle

American  

noun

sea turtles plural

1. any of several large turtles of the families Cheloniidae and Dermochelyidae, widely distributed in tropical and subtropical seas, having the limbs modified into paddlelike flippers: all sea turtles are either threatened or endangered through most of their range because of ocean pollution.

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Other Word Forms

Noun Inflected Forms

• sea turtles
  plural

Etymology

Origin of sea turtle

First recorded in 1670–80

Example Sentences

The film cuts to a hummingbird sipping nectar from a flower on a cactus, a sea turtle floating over a coral reef, pink flamingos on a green lake, a snowflake, a butterfly.

From The Wall Street Journal • Apr. 16, 2026

Meatloaf now swims in the aquarium’s sea turtle rehabilitation area, which opened in January.

From Los Angeles Times • Apr. 9, 2026

In total, more than 2,000 marine species have been recorded in the warm Gulf waters, including over 500 fish species and five types of sea turtles, among them the critically endangered hawksbill sea turtle.

From Barron's • Mar. 17, 2026

Kemp's ridley sea turtles rank among the most endangered sea turtle species on the planet.

From Science Daily • Feb. 5, 2026

We passed all kinds of tame animals, A sea turtle napped in a stack of beach towels.

From "The Sea of Monsters" by Rick Riordan