3 ADJ [usu ADJ n] A rock-bottom price or level is a very low one, mainly in advertisements. [APPROVAL ] □ What they do offer is a good product at a rock-bottom price.
ro ck climb|er (rock climbers ) N‑COUNT A rock climber is a person whose hobby or sport is climbing cliffs or large rocks.
ro ck climb|ing also rock-climbing N‑UNCOUNT Rock climbing is the activity of climbing cliffs or large rocks, as a hobby or sport.
rock|er /rɒ kə r / (rockers )
1 N‑COUNT A rocker is a chair that is built on two curved pieces of wood so that you can rock yourself backwards and forwards while you are sitting in it. [mainly AM ] in BRIT, usually use rocking chair 2 N‑COUNT A rocker is someone who performs rock music. □ The American rockers will play ten nights, starting in Glasgow.
rock|ery /rɒ kəri/ (rockeries ) N‑COUNT A rockery is a raised part of a garden which is built of rocks and soil, with small plants growing between the rocks.
rock|et ◆◇◇ /rɒ k I t/ (rockets , rocketing , rocketed )
1 N‑COUNT A rocket is a space vehicle that is shaped like a long tube.
2 N‑COUNT [oft N n] A rocket is a missile containing explosive that is powered by gas. □ There has been a renewed rocket attack on the capital.
3 N‑COUNT A rocket is a firework that quickly goes high into the air and then explodes.
4 VERB If things such as prices or social problems rocket , they increase very quickly and suddenly. [JOURNALISM ] □ [V ] Fresh food is so scarce that prices have rocketed. □ [V -ing] The nation has experienced four years of rocketing crime.
5 VERB If something such as a vehicle rockets somewhere, it moves there very quickly. □ [V prep/adv] A train rocketed by, shaking the walls of the row houses.
ro ck|et launch|er (rocket launchers ) N‑COUNT A rocket launcher is a device that can be carried by soldiers and used for firing rockets.
ro ck|et sci |ence N‑UNCOUNT If you say that something is not rocket science , you mean that you do not have to be clever in order to do it. □ Interviewing politicians may not be rocket science, but it does matter.
ro ck|et sci |en|tist (rocket scientists ) N‑COUNT If you say that it does not take a rocket scientist to do something, you mean that you do not have to be clever to do it. □ It doesn't take a rocket scientist to make a rock record.
ro ck gar|den (rock gardens ) N‑COUNT A rock garden is a garden which consists of rocks with small plants growing among them.
ro ck-ha rd also rock hard ADJ Something that is rock-hard is very hard indeed. □ During the dry season the land is rock hard.
ro ck|ing chair (rocking chairs ) N‑COUNT A rocking chair is a chair that is built on two curved pieces of wood so that you can rock yourself backwards and forwards when you are sitting in it.
ro ck|ing horse (rocking horses ) N‑COUNT A rocking horse is a toy horse which a child can sit on and which can be made to rock backwards and forwards.
ro ck-like ADJ [usu ADJ n] Something that is rock-like is very strong or firm, and is unlikely to change. □ …his rock-like integrity.
rock'n'roll /rɒ k ə nroʊ l/ → see rock and roll
ro ck pool (rock pools ) N‑COUNT A rock pool is a small pool between rocks on the edge of the sea.
ro ck salt N‑UNCOUNT Rock salt is salt that is formed in the ground. It is obtained by mining.
ro ck-so lid also rock solid
1 ADJ Something that is rock-solid is extremely hard. □ Freeze it only until firm but not rock solid.
2 ADJ If you describe someone or something as rock-solid , you approve of them because they are extremely reliable or unlikely to change. [APPROVAL ] □ Mayhew is a man of rock-solid integrity.
ro ck stea dy also rock-steady ADJ Something that is rock steady is very firm and does not shake or move about. □ He could hold a camera rock steady.
rocky /rɒ ki/ (rockier , rockiest )
1 ADJ A rocky place is covered with rocks or consists of large areas of rock and has nothing growing on it. □ The paths are often very rocky so strong boots are advisable. □ …a rocky headland.
2 ADJ A rocky situation or relationship is unstable and full of difficulties. □ They had gone through some rocky times together when Ann was first married.
ro|co|co /rəkoʊ koʊ, [AM ] roʊ kəkoʊ / N‑UNCOUNT [oft N n] Rococo is a decorative style that was popular in Europe in the eighteenth century. Rococo buildings, furniture, and works of art often include complicated curly decoration.
rod /rɒ d/ (rods )
1 N‑COUNT A rod is a long, thin metal or wooden bar. □ …a 15-foot thick roof that was reinforced with steel rods.
2 → see also fishing rod , lightning rod
rode /roʊ d/ Rode is the past tense of ride .
ro|dent /roʊ d ə nt/ (rodents ) N‑COUNT Rodents are small mammals which have sharp front teeth. Rats, mice, and squirrels are rodents.
ro|deo /roʊ dioʊ, roʊde I oʊ/ (rodeos ) N‑COUNT [usu sing] In the United States, a rodeo is a public entertainment event in which cowboys show different skills, including riding wild horses and catching cattle with ropes.
roe /roʊ / (roes ) N‑VAR Roe is the eggs or sperm of a fish, which is eaten as food. □ …cod's roe.