travertin

travertine

[trav-er-teen, -tin]
noun
a form of limestone deposited by springs, especially hot springs, used in Italy for building.
Also, travertin [trav-er-tin] .


Origin:
1545–55; < Italian travertino, equivalent to tra- across (< Latin trāns- trans-) + (ti)vertino < Latin Tīburtīnus, equivalent to Tīburt- (stem of Tīburs) the territory of Tibur (see Tivoli) + -īnus -ine1

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Collins
World English Dictionary
travertine or travertin (ˈtrævətɪn)
 
n
Also called: calc-sinter a porous rock consisting of calcium carbonate, used for building
 
[C18: from Italian travertino (influenced by tra-trans-), from Latin lapisTīburtīnus Tiburtine stone, from Tīburs the district around Tibur (now Tivoli)]
 
travertin or travertin
 
n
 
[C18: from Italian travertino (influenced by tra-trans-), from Latin lapisTīburtīnus Tiburtine stone, from Tīburs the district around Tibur (now Tivoli)]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
travertine   (trāv'ər-tēn', -tĭn)  Pronunciation Key 
A white, tan, or cream-colored form of limestone, often having a fibrous or concentric appearance. Travertine is formed through the rapid precipitation of calcium carbonate, especially at the mouth of a hot spring or in limestone caves, where it forms stalactites and stalagmites. It is similar to, but harder than, tufa.
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