noun a submerged ridge of rock or coral near the surface of the water
noun a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese
noun 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
verb lower and bring partially inboard
verb roll up (a portion of a sail) in order to reduce its area
verb reduce (a sail) by taking in a reef
Akin to D. rif
, G. riff
, Icel. rif
, Dan. rev
; cf. Icel. rifa
rift, rent, fissure, rifa
to rive, bear. Cf. Rift
- A chain or range of rocks lying at or near the surface of the water. See Coral reefs, under Coral.
- (Mining.) A large vein of auriferous quartz; -- so called in Australia. Hence, any body of rock yielding valuable ore.
Akin to D. reef
, G. reff
, Sw. ref
; cf. Icel. rif
to basten together. Cf. Reeve
, v. t.
- (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.
✍ From the head to the first reef-band, in square sails, is termed the first reef; from this to the next is the second reef; and so on. In fore-and-aft sails, which reef on the foot, the first reef is the lowest part.
Reef transitive verb
imperfect & past participle Reefed present participle & verbal noun Reefing
- (Naut.) To reduce the extent of (as a sail) by roiling or folding a certain portion of it and making it fast to the yard or spar.
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