- a mountain range in N Italy: a part of the Alps. Highest peak, Marmolada, 10,965 feet (3340 meters).
Also called Dolomite Alps.
- a very common mineral, calcium magnesium carbonate, CaMg(CO3)2, occurring in crystals and in masses.
- a rock consisting essentially or largely of this mineral.
Origin of dolomite
1785–95; < French, named after D. de Dolom(ieu) (1750–1801), French mineralogist; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dolomites
When she had him in the Dolomites … She answered him in the same light tone.
I don't see how your Dolomites could beat this for a honeymoon.
But of all this nothing to Clavering until they were in the Dolomites.
We can go to the Dolomites for our second honeymoon—we'll have one every year.
We will not go to Europe at all—except to visit my Dolomites some day.
- a mountain range in NE Italy: part of the Alps; formed of dolomitic limestone. Highest peak: Marmolada, 3342 m (10 965 ft)
- a white mineral often tinted by impurities, found in sedimentary rocks and veins. It is used in the manufacture of cement and as a building stone (marble). Composition: calcium magnesium carbonate. Formula: CaMg(CO 3) 2 . Crystal structure: hexagonal (rhombohedral)
- a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory
C18: named after Déodat de Dolomieu (1750–1801), French mineralogist
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 dolomites
1794, named for French geologist Déodat De Gratet De Dolomieu (1750-1801) who described the rock in his study of the Alps (1791).
Online Etymology Dictionary, © 2010 Douglas Harper
- A gray, pink, or white rhombohedral mineral. Dolomite occurs in curved saddlelike crystals with a pearly to glassy luster. It is a common rock-forming mineral. Chemical formula: CaMg(CO3)2.
- A sedimentary rock containing more than 50 percent of the mineral dolomite by weight.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.