tufa
pronunciation
How to pronounce tufa in British English:
UK ['tju:fə]
How to pronounce tufa in American English:
US ['tjufə]
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- Noun:
- a soft porous rock consisting of calcium carbonate deposited from springs rich in lime
- hard volcanic rock composed of compacted volcanic ash
Word Origin
- tufa (n.)
- type of 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. Related: Tufaceous.
Example
- 1. Lava and white ash mixed with floodwaters to form a hard , sun baked layer known as tufa .
- 2. Formation process of tufa landscape as tour resources .
- 3. To intensify propaganda and refineries in the banning of tires tufa , the epa invited the county 's cable tv xianyou tracking reports , played a " crack down on that side deterrence , education and a " role .
- 4. A discussion on formation process of tufa landscape as tour resources -- a case study of the tufa in jiuzhaigou , sichuan and huangguoshu , guizhou etc.