- of, containing, or like calcium carbonate; chalky: calcareous earth.
Origin of calcareous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for calcareous
Everywhere was the universal whiteness of the calcareous deposit.The Wonder Island Boys: The Tribesmen
Some of these trees had the most calcareous foundations anybody ever saw.A Jolly Fellowship
Frank R. Stockton
The tail is likewise covered with a series of calcareous rings.The Western World
If the soil is not calcareous by nature, it must be made so artificially.The Peanut Plant
B. W. Jones
The burrows are about an inch deep, and are lined with a calcareous deposit.The Sea Shore
William S. Furneaux
- of, containing, or resembling calcium carbonate; chalky
C17: from Latin calcārius, from calx lime
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for calcareous
also calcarious, 1670s, from Latin calcarius "of lime," from calx (genitive calcis) "lime, limestone" (see chalk (n.)).
Online Etymology Dictionary, © 2010 Douglas Harper
- Composed of, containing, or characteristic of calcium carbonate, calcium, or limestone; chalky.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Composed of or containing calcium or calcium carbonate. Calcareous rocks contain as much as 50 percent calcium carbonate.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.