Online Google Dictionary

calcareous 中文解釋 wordnet sense Collocation Usage Collins Definition
Adjective
/kalˈke(ə)rēəs/,
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Containing calcium carbonate; chalky,
  1. Containing calcium carbonate; chalky

  2. (of vegetation) Occurring on chalk or limestone

  1. composed of or containing or resembling calcium carbonate or calcite or chalk
  2. Calcareous is an adjective meaning mostly or partly composed of calcium carbonate, in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines.
  3. Calcium-bearing rock.
  4. Containing an excess of available calcium
  5. (soil): A soil or rock containing calcium carbonate, or related minerals, so that it effervesces (bubbles off CO 2) when treated with acid (cf. dolomite). Usually formed from shells or chemical precipitation, these soils and rocks tend to be coastal in occurrence.
  6. Refers to soils or rocks, containing abundant calcium carbonate, which results in alkaline or basic reactions (high pH) and consequently low availability of several essential plant nutrients, making them problematic for crop production.
  7. A geological term to describe chalky types of sands and shales
  8. composed of or containing lime or limestone
  9. impregnated or containing large amounts of lime; chalk-like, limy or stony
  10. This term refers to soil which has a high level of calcium carbonate. This content makes the soil very alkaline.
  11. formed of calcium carbonate or magnesium carbonate by biological deposition or inorganic precipitation in sufficient quantities to effervesce when treated with cold hydrochloric acid
  12. having calcium carbonate incorporated into a body structure, such as skeletal elements or a shell.
  13. (adjective)--applies to rocks containing appreciable (10 percent?) CaCO3.
  14. A term used to describe alkaline soils containing limestone.
  15. adj. Term used to describe a structure, secreted by an organism, that consists of or contains calcium carbonate (CaCO3), e.g., the shell of a bivalve.
  16. Chalky; relating to or containing lime or calcium, or calcific material. (Online Medical Dictionary 2002).
  17. Containing much higher than average amounts of calcium or lime. Calcareous habitats are often characterized by the presence of limestone and are typically alkaline.
  18. Generally alkaline soils.
  19. Another word for chalky.