'rock crystal noun [U] a pure clear form of quartz (= a hard mineral) tKH

rocker /'roka(r); NAmE 'ra:k-/ noun 1 one of the two curved pieces of wood on the bottom of a rocking chair ( 2 (especially NAmE) = rocking

chair 3 Rocker (BrE) a member of a group of young people in Britain, especially in the 196os, who liked to wear leather jackets, ride motorcycles and listen to ROCK AND ROLL music MitWA ( Alt 20 60 Aft

mm#,*, uftmmfc)

— compare mod 4 a person who performs, dances to or enjoys rock music A; #

nTTTTl be ,off your 'rocker (informal) to be

crazy Ait;

'rocker switch noun (technical A ill) a type of electrical switch often used, for example, for lights or electrical sockets, where you press one end down to switch it on, and the other end down to switch it off again MW.

mm?#:

rock-ery /'rokari; NAmE 'ra:k-/ noun (pi. -ies) (also 'rock garden) a garden or part of a garden consisting of an arrangement of large stones with plants growing among them {gib{gib rocket /'rnkit; NAmE 'raikit/ noun, verb m noun 1 [C] a spacecraft in the shape of a tube that is driven by a stream of gases let out behind it when fuel is burned inside jkmi: a space rocket A$Aii 0 The rocket was launched in March 1980. A fit A It A 1980 A 3 A] <> 0 The idea took off like a rocket (= it immediately became popular). BA

2 [C] a missile (= a weapon that travels through the air) that carries a bomb and is driven by a stream of burning gases Afiitfi; Air ( # ) : a rocket attack Air J&A 3 [C] a firework that goes high into the air and then explodes with coloured lights A.; {fife 4 [U] (BrE) (NAmE aru gula) a plant with long green leaves that have a strong flavour and are eaten raw in salads AliAF; D3S51 to give sb a'rocket |

to get a 'rocket (BrE, informal) to speak angrily to sb because they have done sth wrong; to be spoken to angrily for this reason ( igfij ) a verb 1 [V] to increase very quickly and suddenly jAiHA' -{£; BEE] shoot up: rocketing prices o Unemployment has rocketed up again. AikA$fc#?ASi iff ₀ o The total has rocketed from 376 to 532. jf 376 532 ₀ 2 [V +adv./prep.] to move very fast £R

The car rocketed out of a side street.

— T7F7/tAo 3 to achieve or to make sb/sth achieve a successful position very quickly ( {£ ) il $1 i§j f& : [V] The band rocketed to

stardom with their first single.

fsfcflfef]—[also VN] 4 [VN] to attack a place with rockets ib AlrSAAA

rock et ry /'rnkitri/ noun [U] the area of science which deals with rockets and with sending rockets into space; the use of rockets AHA; Afui£A rocket science noun [U] IT»T71 it's not rocket science (informal) used to emphasize that sth is easy to do or understand A # $£ ^ ; A H771 brain

surgery : Go on, you can do it. It’s not exactly rocket science, is it?

’ rock face noun a vertical surface of rock, especially on a mountain ( Ajflbf^J )

rock-fall /’rokfoil; NAmE 'ra:k-/ noun the fact of rocks falling down; a pile of rocks that have fallen Xm ; m

rock garden noun = rockery , rock-' hard adj. extremely hard or strong

'rocking chair (also rock-er especially in NAmE) noun a chair with two curved pieces of wood under it that make it move backwards and forwards —picture o CHAIR

'rocking horse noun a wooden horse for children that can be made to rock backwards and forwards ( JLJt

rock music noun = rock n.(5) rock *n* roll noun = rock and roll the Rock of Gibraltar /.rok av d3i'bra:lta(r)/ noun [sing.] a high cliff in southern Spain, at the southwestern edge of the Mediterranean Sea, near the town and port of Gibraltar. When people say that sth is like the Rock of Gibraltar, they mean it is very safe or solid.

HAib (

) : When I invested my money with the company I was told it was as safe as the Rock of Gibraltar,

'rock pool (BrE) (NAmE 'tide pool) noun a small amount of water that collects between the rocks by the sea/ ocean (

'rock salt noun [U] a kind of salt that comes from the ground

rock 'solid adj. 1 that you can trust not to change or to disappear The support

for the party was rock solid. # % f!j T M A (ft A

j#₀ 2 extremely hard and not likely to break !g{jg (ft;

A£#lft

rocky /'rnki; NAmE 'rarki/ adj. (rock-ier, rockiest) 1 made of rock; full of rocks ^ jEf (ft; ^ qg A (ft : a rocky coastline 0 rocky soil ^ A (ft

-■ ± 2 difficult and not certain to continue or to be

successful iitM; mumWM; a rocky

marriage AH A (ft {#$8

the .Rocky Mountain 'States noun [pi.] the eight US states in the area of the Rocky Mountains ( ) ro-coco (also Rococo) /ra'kaukau; NAmE ra'koukou/ adj. used to describe a style of architecture, furniture, etc. that has a lot of decoration, especially in the shape of curls; used to describe a style of literature or music that has a lot of detail and decoration. The rococo style was popular in the 18th century. HnJA^fft, xi/Hlib

w (mw&mwnisMmk, mm, a

MAA, wmff 18 ttt£ )

rod /rod; NAmE ra:d/ noun 1 (often used in compounds # A Aft ft pT ifll) a long straight piece of wood, metal or glass AF; A; # — picture o laboratory — see also LIGHTNING ROD(l) 2 = FISHING ROD: fishing with rod and line 3 (also the rod) (old-fashioned)

a stick that is used for hitting people as a punishment ( AtT Ab] fKl ) {§#: There used to be a saying: ‘Spare the rod and spoil the child. ’ ($ T A fj ^ ^

ff ₀ ” 4 (NAmE, slang) a small gun IT>T77i make a rod for your own 'back to do sth that will cause problems for you in the future g #c ® ; g it #L — more at beat v., rule v. rodept of ride

ro-dent /'raudnt; NAmE 'rou-/ noun any small animal that belongs to a group of animals with strong sharp front teeth. Mice, rats and rabbits are all rodents. — picture o page R28

rodeo /'raodiau; rao'deiau; NAmE 'roudiou; roo'deioo/ noun (pi. -os) a public competition, especially in the US, in which people show their skill at riding wild horses and catching cattle with ropes ( AFh AISW ) AffiS

mm

roe /rao; NAmE rou/ noun 1 [U, C] the mass of eggs inside a female fish (hard roe) or the sperm of a male fish (soft roe), used as food #.A: cod’s roe 2 = roe

DEER