sea turtle
Học thuậtThân thiện
Definition
Noun: A large marine reptile of the order Testudines, characterized by limbs that have evolved into paddle-like flippers for swimming. Sea turtles are widely distributed throughout the warm and temperate oceans of the world.
Usage
The term "sea turtle" refers specifically to the marine-dwelling species within the turtle family. It is used as a common name to distinguish these ocean-going reptiles from their freshwater or land-dwelling relatives (tortoises, terrapins).
Examples
- The sea turtle swam gracefully through the coral reef.
- Conservation efforts are crucial to protect the nesting beaches of the endangered sea turtle.
- We observed a large sea turtle coming ashore to lay its eggs.
Advanced Usage
- Collective Reference: The term can be used in a general sense to refer to all species within this marine group (e.g., "The biology of the sea turtle is fascinating.").
- In Scientific/Conservation Context: Often used with a species modifier (e.g., "the green sea turtle," "the loggerhead sea turtle") to specify which of the seven living species is being discussed.
Variants and Related Words
- Marine turtle: A direct synonym for "sea turtle."
- Cheloniidae: The scientific family name for most sea turtles (the hard-shelled species).
- Dermochelyidae: The scientific family name for the leatherback sea turtle, which has a leathery shell instead of a hard one.
Synonyms
- Marine turtle
Related Phrases
- Sea turtle nesting: The process where female sea turtles return to beaches to lay eggs.
- Sea turtle conservation: The protection and preservation efforts aimed at sea turtle populations.
Noun
- any of various large turtles with limbs modified into flippers; widely distributed in warm seas