Definition of calcareous in English:

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Pronunciation: /ˌkalˈkerēəs/


1Containing calcium carbonate; chalky.
Example sentences
  • Fritted iron can be used on acid soils, but it isn't suitable for use on alkaline or calcareous soils (with calcium carbonate).
  • Because of their ability to secrete calcium carbonate, calcareous red algae have a better Phanerozoic fossil record than many other groups of algal protists.
  • The Ph conditions should be ideally calcareous or neutral.
1.1 Ecology (Of vegetation) occurring on chalk or limestone.
Example sentences
  • The unit consists of limestone or calcareous mudstone and was deposited in a fully marine environment.
  • The Liard Formation is a variably thick succession of calcareous sandstone and arenaceous limestone that was deposited within and adjacent to the Peace River embayment in the Middle Triassic.
  • The Blubber Point Member, characterized by impure limestone and calcareous sandstone with minor shale, represents shallow, inner carbonate shelf deposition.


Late 17th century: from Latin calcarius (from calx, calc- 'lime') + -eous.

Words that rhyme with calcareous

Aquarius, Darius, denarius, gregarious, hilarious, multifarious, nefarious, omnifarious, precarious, Sagittarius, senarius, Stradivarius, temerarious, various, vicarious

For editors and proofreaders

Syllabification: cal·car·e·ous

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