Meaning of the word "coral reef" in English

What does "coral reef" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

coral reef

US /ˌkɔːr.əl ˈriːf/
UK /ˈkɒr.əl riːf/
"coral reef" picture

Noun

a ridge of rock in the sea formed by the growth and deposit of coral

Example:
Divers explored the vibrant coral reef teeming with marine life.
Climate change poses a significant threat to coral reefs worldwide.