Look up: tufa

1. 
   Tufa
   Cellular rock; porous limestone.
   Found on http://www.castlesontheweb.com/glossary.
   
   
2. 
   Tufa
   Tufa is a soft white porous rock of calcium carbonate deposited from solution in spring water or percolating ground water.
   Found on http://www.encyclo.co.uk/nol.php
   
   
3. 
   tufa
   [n] - a soft porous rock consisting of calcium carbonate deposited from springs rich in lime
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. 
   tufa
   a porous or compact form of CaC03 deposited out of solution from a mineral spring or lake Category: Chemistry
   Found on http://www.mijnwoordenboek.nl/definition
   
   
5. 
   Tufa
   a very light sponge-like limestone formed in aireated springs, and used decoratively eg in grottos or where lightness is important eg at the top of domes. - see Stone/stonework
   Found on http://www.trp.dundee.ac.uk/research/glo
   
   
6. 
   Tufa
   A porous, grey stone of volcanic origin.
   Found on http://www.crsbi.ac.uk/crsbi/frglossary.
   
   
7. 
   tufa
   <chemical> A soft or porous stone formed by depositions from water, usually calcareous; called also calcareous tufa. ... A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria. ... Origin: It. Fufo soft, sandy stone, L. Tofus, tophus. Cf. Tofus, Toph, and Tophin. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
8. 
   tufa
   calc-tufa noun a soft porous rock consisting of calcium carbonate deposited from springs rich in lime
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
9. 
   Tufa
   `Tufa` is the name for an unusual geological form of calcite rock. Tufa is a rough, thick, rock-like calcium carbonate deposit that forms by precipitation from bodies of water with a high dissolved calcium content. Tufa is not to be confused with tuff which is volcanic. Tufa deposition occurs in seven known ways: *Mechanical precipitation by wave action against the shore. This form of tufa can be useful for identifying the shoreline of extinct...
   Found on http://en.wikipedia.org/wiki/Tufa
   
   
10. 
    Tufa
    • A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria. • A soft or porous stone formed by depositions from water, usually calcareous; -- called also calcareous tufa.
    Found on http://thinkexist.com/dictionary/meaning
    
    
11. 
    TUFA
    Spongy or vesicular calcium carbonate deposited from spring, river or lake waters. Cf. travertine.
    Found on http://www.cancaver.ca/docs/glossary.htm
    
    
12. 
    tufa
    tufa: see travertine.
    Found on http://www.infoplease.com/ce6/sci/A09198