English Words Starting With R

• rock crystal

  nounC1
  /ˌrɒk ˈkrɪstl/A transparent, colourless form of pure quartz (silicon dioxide).
• rock cycle

  nounC2
  /ˈrɒk ˌsaɪkl/The continuous geological process through which rocks are formed, transformed, and reformed over extremely long timescales.
• rock dove

  nounLow
  /rɒk dʌv/A bird species, Columba livia, commonly known as the common pigeon, often found in urban and wild habitats.
• rock dust

  nounLow
  /ˈrɒk ˌdʌst/Finely ground particles of rock, produced naturally by erosion or artificially by crushing.
• rock elm

  nounLow
  /ˌrɒk ˈɛlm/A specific species of North American deciduous tree (Ulmus thomasii), known for its hard, strong wood and often found on rocky uplands.
• rock falls

  nounC1
  /ˈrɒk ˌfɔːlz/Natural geological events where rocks break loose from cliffs or slopes and tumble downwards.
• rock fence

  nounLow
  /ˈdrʌɪ stəʊn wɔːl/A type of fence constructed by piling or stacking stones without mortar, primarily used as a boundary marker or to contain livestock.
• rock fever

  nounLow
  /ˈrɒk ˌfiːvə/A state of intense restlessness, anxiety, or depression caused by living in an isolated, confined, or remote location, especially on a small island.
• rock flour

  nounLow
  /ˌrɒk ˈflaʊə/A fine-grained, silt-sized sediment created by the grinding action of glaciers moving over bedrock.
• rock flower

  nounLow
  /ˈrɒk ˌflaʊə/A plant that grows in rocky or mountainous terrain, often in crevices, known for its ability to thrive in harsh conditions.
• rock garden

  nounC1
  /ˈrɒk ˌɡɑːdn̩/An area of a garden in which rocks and stones are arranged decoratively among carefully chosen plants.
• rock glacier

  nounC2
  /ˌrɒk ˈɡlæs.i.ər/A geomorphic landform consisting of a mixture of rock debris and ice that moves slowly downslope under its own weight.
• rock hill

  nounLow
  /rɒk hɪl/A hill composed of or characterized by rocks.
• rock hind

  nounRare
  /ˈrɒk ˌhɪnd/A species of grouper (Epinephelus adscensionis) inhabiting rocky reef areas in the Atlantic Ocean.
• rock hound

  nounLow
  /ˈrɒk haʊnd/An amateur enthusiast or hobbyist who collects and studies rocks, minerals, and fossils.
• rock hounding

  nounLow
  /ˈrɒk ˌhaʊndɪŋ/The hobby of collecting rocks and minerals.
• rock hyrax

  nounRare
  /ˌrɒk ˈhaɪ.ræks/A small, herbivorous mammal, native to Africa and the Middle East, with a rounded body and short legs, often found in rocky areas.
• rock island

  nounC1
  /ˌrɒk ˈaɪ.lənd/An island composed primarily of solid rock, often formed by geological uplift or resistant material.
• rock jasmine

  nounC1
  /ˈrɒk ˈdʒæz.mɪn/The common name for plants in the genus Androsace, a group of low-growing, mat-forming alpine plants with small, jasmine-like flowers, typically found in rocky habitats.
• rock jock

  nounLow Frequency
  /ˈrɒk ˌdʒɒk/A person highly enthusiastic about rock climbing or mountaineering; a dedicated rock climber.

Showing 4361–4380 of 5802 words.