Thesaurus: tufa

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Definitions

1. A soft or porous stone formed by depositions from water, usually calcareous; -- called also calcareous tufa.
2. A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria.
3. n. a soft porous rock consisting of calcium carbonate deposited from springs rich in lime
4. n. hard volcanic rock composed of compacted volcanic ash
5. (a) A soft or porous stone formed by depositions from water, usually calcareous; -- called also calcareous tufa. (b) A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria.
6. n:100 n. a soft porous rock consisting of calcium carbonate deposited from springs rich in lime