noun a ridge of rocks or sand, often of coral debris, at or near the surface of the water.
Mining a lode or vein.
Origin of reef 1 1575–85; earlier riff(e ) < Dutch rif
noun a part of a sail that is rolled and tied down to reduce the area exposed to the wind.
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verb (used with object) to shorten (sail) by tying in one or more reefs.
to reduce the length of (a topmast, a bowsprit, etc.), as by lowering, sliding inboard, or the like.
to pull (old oakum) out of seams, as with a rave hook (often followed by out ).
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Origin of reef 2 1350–1400; Middle English refe (noun) < Dutch reef
Related forms un·reefed , adjective Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for reef Contemporary Examples of reef And this in turn affects the fish, whales, dolphins, turtles, dugongs and seabirds that live within the Reef .
The Reef has lost more than half its coral cover since 1985, with two-thirds of the loss occurring after 1998.
It also takes place near a minefield of rocks, is a hangout spot for sharks, and breaks on a reef .
Before the war I was a short-order cook in Zabadani, which is a beautiful tourist valley in Reef Damashq, near Lebanon.
But Searle and other native Gibraltarians say the move to build the reef was about much more than the fishing population.
Historical Examples of reef He had himself been obliged to bail out three times, running in from the reef .
I said, standing on the steps like a captain ordering his men to take in a reef .
The reef must first be cleared, and then the ship shall be carried.
"This is a part of the reef , then, that is never covered," said he.
The Arabs of the ship called to those on the reef , and the latter answered.
British Dictionary definitions for reef noun a ridge of rock, sand, coral, etc, the top of which lies close to the surface of the sea
a ridge- or mound-like structure built by sedentary calcareous organisms (esp corals) and consisting mainly of their remains
a vein of ore, esp one of gold-bearing quartz
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Word Origin for reef C16: from Middle Dutch ref , from Old Norse rif rib 1 , reef ²
noun the part gathered in when sail area is reduced, as in a high wind
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verb to reduce the area of (sail) by taking in a reef
(tr) to shorten or bring inboard (a spar)
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Word Origin for reef C14: from Middle Dutch rif ; related to Old Norse rif reef, rib 1 , German reffen to reef; see reef 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for reef n.1 "rock ridge underwater," 1580s, riffe , probably via Dutch riffe , from a Scandinavian source, cf. Old Norse rif "ridge in the sea; reef in a sail," literally "rib" (see rib (n.)).
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n.2 "horizontal section of sail," late 14c. (mid-14c. in rif-rope ), from a Scandinavian source, cf. Old Norse rif "reef of a sail," probably a transferred use of rif "ridge under the sea; rib" (see rib (n.) and cf. reef (n.1)). German reff , Swedish ref , Norwegian riv , Danish reb likely all are from the Old Norse word.
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v. 1660s, "take in, roll up" (as a sail on a ship), from reef (n.2). Related: Reefed ; reefing .
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Online Etymology Dictionary, © 2010 Douglas Harper
A strip or ridge of rocks, sand, or coral that rises to or near the surface of a body of water. See more at coral reef .
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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
