noun Download 🔗Share A chain or range of rocks, sand, or coral lying at or near the surface of the water. Examples : "Divers explored the colorful reefs teeming with fish just off the coast. " geography ocean environment nature geology biology Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A large vein of auriferous quartz; hence, any body of rock yielding valuable ore. Examples : "The old miners believed the richest gold was hidden deep within the quartz reefs of the mountain. " geology mineral Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A portion of a sail rolled and tied down to lessen the area exposed in a high wind. Examples : "During the sudden squall, the experienced sailor quickly tied in the reefs to reduce the sail area and maintain control of the boat. " nautical sailing Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A reef knot. Examples : "The sailor quickly tied the two ropes together with a pair of reefs. " nautical sailing Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To take in part of a sail in order to adapt the size of the sail to the force of the wind. Examples : "The sailors had to reef the sails as the wind grew stronger, making the boat more stable. " nautical sailing technical Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To pull or yank strongly, especially in relation to horse riding. Examples : "The nervous rider reefs on the reins, trying to control the horse's sudden burst of speed. " animal sport action Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share (of paddles) To move the floats of a paddle wheel toward its center so that they will not dip so deeply. Examples : "Reef the paddles." nautical sailing technology machine Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The itch; any eruptive skin disorder. Examples : "After working in the garden, she developed reefs on her arms from an allergic reaction to the plants. " medicine disease body appearance Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share Dandruff. Examples : ""He brushed his dark jacket because it was covered in reefs after scratching his head." " body appearance medicine Chat with AIVocabulary GamePractice Reading