Definition of Reef

Pronunciation: rēft
n.1.A chain or range of rocks lying at or near the surface of the water. See Coral reefs, under Coral.
2.(Mining.) A large vein of auriferous quartz; - so called in Australia. Hence, any body of rock yielding valuable ore.
Reef builder
(Zool.) any stony coral which contributes material to the formation of coral reefs.
Reef heron
(Zool.) any heron of the genus Demigretta; as, the blue reef heron (Demigretta jugularis) of Australia.
1.(Naut.) That part of a sail which is taken in or let out by means of the reef points, in order to adapt the size of the sail to the force of the wind.
Close reef
the last reef that can be put in.
Reef band
See Reef-band in the Vocabulary.
Reef knot
the knot which is used in tying reef pointss. See Illust. under Knot.
Reef line
a small rope formerly used to reef the courses by being passed spirally round the yard and through the holes of the reef.
Reef points
pieces of small rope passing through the eyelet holes of a reef-band, and used reefing the sail.
- Totten.
Reef tackle
a tackle by which the reef cringles, or rings, of a sail are hauled up to the yard for reefing.
To take a reef in
to reduce the size of (a sail) by folding or rolling up a reef, and lashing it to the spar.
- Totten.
v. t.1.(Naut.) 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.
[imp. & p. p. Reefed (rēft); p. pr. & vb. n. Reefing.]
To reef the paddles
to move the floats of a paddle wheel toward its center so that they will not dip so deeply.

Related Words

ait, archipelago, arrest, atoll, backpedal, backwater, bank, bar, bill, brake, breakwater, cape, cay, check, chersonese, clear the decks, clip the wings, consider every angle, continental island, coral head, coral heads, coral island, coral reef, curb, decelerate, delay, delta, detain, dowse sail, draw rein, ease off, ease up, flat, ford, forearm, foreland, furl, guard against, hand a sail, head, headland, hedge, hold back, hold in check, hold up, holm, hook, impede, insularity, ironbound coast, island, island group, islandology, isle, islet, keep back, key, leave out nothing, ledges, lee shore, let down, let up, lose ground, lose momentum, lose speed, make sure, make sure against, moderate, mull, naze, ness, obstruct, oceanic island, overlook no possibility, peninsula, pitfall, play safe, point, prepare for, promontory, provide a hedge, provide against, provide for, quicksands, reduce sail, reef down, rein in, relax, retard, rockbound coast, rocks, sandbank, sandbar, sands, sandspit, set back, shallow, shallows, shelf, shoal, shoal water, shoals, shorten sail, slack off, slack up, slacken, slow, slow down, slow up, snug down, spit, spur, stay, take in sail, take measures, take precautions, take steps, throttle down, tidal flats, tongue, undercurrent, undertow, wetlands


Reed bunting
Reed canary grass
Reed grass
Reed organ
Reed pipe
Reed sparrow
Reed stop
Reed warbler
reed wren
Reef band
Reef builder
Reef heron
Reef knot
Reef line
Reef points
Reef tackle
Reefing bowsprit
Reel oven
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