To reduce the extent of (as a sail) by rolling or folding a certain portion of it and making it fast to the yard or spar.
an organic, wave resistant, shallow-water structure.
A ridge of rock, or other material, lying seawards of the low water line.
An underwater structure; something that extends up from the seafloor but does not rise above the surface of the water like an island. Coral reefs are formed from the hard skeletons of coral. There are also rocky reefs, which are piles of rock under water.
Lessen sail area by tying parts of it to the mast.
A mound or ridge-shaped organic structure that is built by calcareous organisms, is wave resistant, and stands in relief above the surrounding seafloor.
To partially furl a sail. Done in strong winds to reduce strain.
a strip of rock, sand or coral close to the surface of the ocean or another body of water.
is a hill on the sea bottom, formed of calcareous algae and skeletons of other creatures, the diversity of which considerable depends on water salinity.
A strip or ridge of rocks, sand, or coral that rises to or near the surface of a body of water.
Related Topics: [ wetlands] Reefs are ridges or mound formed through the growth and accumulation of sedentary invertebrates. They may be classified as either wetland or deepwater habitats and will periodically give rise to lush aquatic beds and occasionally mangrove forests. For the most part reefs are restricted to waters at tropical and subtropical latitudes - consequently nearly all U.S. wetlands are limited to the waters around the Hawaiian Islands and the Florida coast.
A metallic mineral deposit, especially gold-bearing, commonly in a sedimentary rock.
A relatively extensive rocky or coral elevation off the sea bottom at or near enough to the surface to be a danger to surface vessels. A "barrier" reef roughly parallels land but is some distance offshore with deeper water intervening. A general guideline sometimes used is that a reef (or shoal) is covered by less then 10 fathoms. See ledge and shoal.
A solid structure built of shells and other secretions of marine organisms, particularly coral.
Part of a sail from one row of eyelet-holes to another. It is applied likewise to a chain of rocks lying near the surface of the water.
i) A ridge of rock or coral etc., at or near the surface of the sea, ii) each of several strips across a sail, for taking it in or rolling it up to reduce the surface area in a high wind, iii) take in a reef or reefs of (a sail), iv) shorten (a topmast or a bowsprit).
1) "A part of the sail that can be taken in, rolled up and secured by reef-points." (Uden & Cooper) 2) To lower or lift that part of the sail part way and then secure it as described. This is used to decrease the amount of sail that the wind affects. 3) The line attached to the side of some square sails that hauls up the side part way to aid in reefing and/or furling.
a submerged ridge of rock or coral near the surface of the water
roll up (a portion of a sail) in order to reduce its area
reduce (a sail) by taking in a reef
a chain of rocks close to the surface of the water or sticking out of it
a chain of rocks or ridge of sand or coral, at or near the surface of the water, or submerged
a collection of living corals on top of the skeletons of the corals that went before them
a nautical term for a chain of rock s or coral , or ridges of sand, at or just beneath the surface of the water
a ridge or outcrop of rock in the sea that comes close to the surface
a submerged resistant mound or ridge formed by the accumulation of plant and animal skeletons
A ridge of rocks or coral lying near the surface of the sea, which may be visible at low tide, but is usually covered by water.
or Coral Reef) —a massive, wave-resistant structure, built largely by coral, and consisting of skeletal and chemically precipitated materials.(back)
a chain of rocks or coral or a ridge of sand at or near the surface of the water, forming a hazardous obstruction.
A reef is an undersea growth of coral near the surface of the water.
To shorten sail by tying up the foot of the sail to reduce wind pressure, or to give the helmsman a better view. '
rock found above or below sea level in shallow coastal waters
Highly stratified mineral bearing deposit which is clearly identifiable from surrounding rock.
A chain of rocks, often coral, lying near the water surface. Sometimes ships bump into coral reefs in the ocean.
A submerged line of rocks (or coral).
1. To temporarily reduce the area of a sail exposed to the wind, usually to guard against adverse effects of strong wind or to slow the vessel. 2. Rocks or coral, possibly only revealed at low tide, shallow enough that the vessel will at least touch if not go aground.
to shorten sail, usually by partially lowering it and tying it off with reefing lines
A ridge of rock of other material lying just below the surface of the sea
A ridge-like or mound-like structure, layered or massive, built by sedentary calcareous organisms, especially corals, and consisting mostly of their remains; it is wave-resistant and stands above the surrounding contemporaneously deposited sediment. Reefs may also include a mass or ridge of rocks, especially coral and sometimes sand, gravel, or shells, rising above the surrounding estuary or sea bottom to or nearly to the surface (modified from Jackson, 1997).
to reduce the size of a sail
chain or string of coral, oysters, rocks or other hard substrate
n. A large ridge or mound-like structure within a body of water that is built by calcareous organisms such as corals, red algae, and bivalves; barrier reef- n. A reef growing offshore from a land mass and separated by a lagoon or estuary, e.g, the Great Barrier Reef of Australia; patch reef- n. A discontinuous reef growing in small areas, separated by bare areas of sand or debris, often part of a larger reef complex.
a coral formation jutting from the sea floor to the surface, which can tear a ship's bottom out.
(1) An underwater obstruction of rock or coral which can tear the bottom out of a ship. (2) To reef sails is to shorten them, tying them partially up, either to slow the ship or to keep a strong wind from putting too much strain on the masts.
The reef is the seam of rock the gold comes from and reef gold depicts it as being located or recovered from the reef.
A shortened sail. The surface of a sail is reduced by folding a portion of the sail up and tying it to the yard. . To shorten a sail by making a reef.
1) To partially lower a sail so that it is not as large. This helps prevent too much sail from being in use when the wind gets stronger. 2) A line of rock and coral near the surface of the water.
structure produced by the piled-up skeletons of corals (animals in the Class Anthozoa). Coral reefs are found in warm, shallow oceans with few nutrients in the water. They form the basis for rich communities of other invertebrates, plants, and fish. structure produced by the calcium carbonate skeletons of coral polyps (Class Anthozoa). Coral reefs are found in warm, shallow oceans with low nutrient availability. They form the basis for rich communities of other invertebrates, plants, fish, and protists. The polyps live only on the reef surface. Because they depend on symbiotic photosynthetic algae, zooxanthellae, they cannot live where light does not penetrate.
A sedimentary rock aggregate, large or small, composed of the remains of colonial-type organisms that lived near or below the surface of water bodies, mainly marine, and developed relatively large vertical dimensions as compared with the proportions of adjacent sedimentary rock. In canyon country a "reef" is simply a nautical term carried over into geology to describe a barrier, such as Waterpocket Fold in Capital Reef National Park in Utah.
To roll up the sails onto the spars. Close-reefed - tightly rolled.
In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water yet shallow enough to be a hazard to ships. Many reefs result from abiotic processes—deposition of sand, wave erosion planning down rock outcrops, and other natural processes— but the best-known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and calcareous algae.
Reef are an English rock band from Butleigh near Glastonbury. The band members include Gary Stringer on vocals, Kenwyn House on guitar, Jack Bessant on bass and Dominic Greensmith on drums.