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calctuff

 - 3 dictionary results

calc-tu⋅fa

  [kalk-too-fuh, -tyoo-]
Use calctuff in a Sentence
–noun
tufa (def. 1).
Also, calc-tuff  [kalk-tuhf] .

Origin:
1815–25; calc- + tufa

tu⋅fa

  [too-fuh, tyoo-]
–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) tuff2.
Origin:
1760–70; < It tufo < L tōfus

Related forms:
tu⋅fa⋅ceous  [too-fey-shuhs, tyoo-] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Word Origin & History

tufa 
"a porous rock," 1770, from It. tufa, from L. tophus "loose, porous volcanic rock," an Oscan-Umbrian loan-word.
Online Etymology Dictionary, © 2001 Douglas Harper
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