EXAMPLES | WORD ORIGIN noun . Geology (not in technical use) tuff 2. Origin of tufa 1760–70; < Italian tufo < Latin tōfus Related forms tu·fa·ceous , [too- fey-sh uh s, tyoo-] /tuˈfeɪ ʃəs, tyu-/ adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for tufa Historical Examples of tufa British Dictionary definitions for tufa noun 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 for tufa
C18: from Italian
tufo, from Late Latin tōfus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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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
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
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