reef
reef
- n a submerged ridge of rock or coral near the surface of the water
- n a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese
- n one of several strips across a sail that can be taken in or rolled up to lessen the area of the sail that is exposed to the wind
- v lower and bring partially inboard
reef the sailboat's mast - v roll up (a portion of a sail) in order to reduce its area
- v reduce (a sail) by taking in a reef
- One-third of reef-building coral are threatened, scientists say, making corals the Earth's most endangered species.
- Jason Rew, president and CEO of Great Burial Reef, holds a solid maple urn containing cremated remains, which he will place in a manmade reef underwater.
- When the reef of his childhood began to die, an Israeli businessman figured out how to revive it.