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tufa

[too-fuh, tyoo-] /ˈtu fə, ˈtyu-/
noun, Geology
1.
Also called calcareous tufa, calc-tufa, calc-tuff. a porous limestone formed from calcium carbonate deposited by springs or the like.
Compare travertine.
2.
(not in technical use) tuff 2 .
Origin of tufa
1760-1770
1760-70; < Italian tufo < Latin tōfus
Related forms
tufaceous
[too-fey-shuh s, tyoo-] /tuˈfeɪ ʃəs, tyu-/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for tufa
Historical Examples
  • It was dug in a solid mass of tufa nearly ten mtres thick, which had been formed in the centuries anterior to Csar.

    History of Julius Caesar Vol. 2 of 2 Napoleon III, Emperor of the French, 1808-1873.
  • The material is generally lava, but tufa and limestone are also found.

  • The rocks in the vicinity are all tufa, and some of the springs break out close to the cold water of the lake.

  • In style and construction this colonnade belongs to the tufa Period (p. 40).

  • In those parts of the Campagna where basalt rather than tufa becomes the usual material, as at Prneste, we find polygonal masonry.

    Old Rome Robert Burn
  • The colonnade about the court was built of tufa, and coated with white stucco.

  • The substruction of this temple, which has been laid bare, consists of tufa cased with travertine.

    Old Rome Robert Burn
  • The Doric columns were of tufa, coated with fine white stucco.

  • Most of the churches and palaces and houses of Orvieto were also built of tufa.

  • tufa is found all over the Campagna, and is of volcanic origin.

    Rambles in Rome S. Russell Forbes
British Dictionary definitions for tufa

tufa

/ˈtjuːfə/
noun
1.
a soft porous rock consisting of calcium carbonate deposited from springs rich in lime Also called calc-tufa
Derived Forms
tufaceous (tjuːˈfeɪʃəs) adjective
Word Origin
C18: from Italian tufo, from Late Latin tōfus
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
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Word Origin and History for tufa
n.

"a porous rock," 1770, from Italian tufa "tufa, porous rock," probably from Latin tufus, tophus "loose, porous volcanic rock," said to be an Oscan-Umbrian loan-word.

Online Etymology Dictionary, © 2010 Douglas Harper
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tufa in Science
tufa
  (t'fə)   
A soft, friable, and porous sedimentary rock consisting of calcium carbonate and formed by the evaporation of water, especially at the mouth of a hot spring or on a drying lakebed. It is similar to, but harder than, travertine.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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