Search for crossword answers and clues
Porous rock
Answer for the clue "Porous rock ", 4 letters:
tufa
Alternative clues for the word tufa
Word definitions for tufa in dictionaries
Wiktionary
Word definitions in Wiktionary
n. 1 calcareous lime deposited by precipitation from a body of water, such as a hot spring. 2 A variety of volcanic rock, tuff.
WordNet
Word definitions in WordNet
n. a soft porous rock consisting of calcium carbonate deposited from springs rich in lime [syn: calc-tufa ] hard volcanic rock composed of compacted volcanic ash [syn: tuff ]
Wikipedia
Word definitions in Wikipedia
Tufa is a variety of limestone , formed by the precipitation of carbonate minerals from ambient temperature water bodies. Geothermally heated hot springs sometimes produce similar (but less porous) carbonate deposits known as travertine . Tufa is sometimes ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Tufa \Tu"fa\, [It. fufo soft, sandy stone, L. tofus, tophus. Cf. Tofus , Toph , and Tophin .] (Min.) A soft or porous stone formed by depositions from water, usually calcareous; -- called also calcareous tufa . A friable volcanic rock or conglomerate, formed ...
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
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 .
Usage examples of tufa.
Cyrus Harding felt the volcanic tufa with which the plain was strewn, and which was but pulverized cinders hardened into solid blocks by time, tremble beneath him, but he could discover no traces of fresh lava.
Tufa Lake and Promiseville are fictional locales, the author has drawn inspiration from Mono Lake and Bodie, California.
Curia Hostilia had been uninspiring within: the tiers had been blocks of unrendered tufa, the walls drably painted with a few red curliques and lines on a beige background, the curule dais more tufa stone, and the central space between the two banks of tiers tessellated in black and white marble so old it had long lost polish or majesty.
The old Curia Hostilia had been uninspiring within: the tiers had been blocks of unrendered tufa, the walls drably painted with a few red curliques and lines on a beige background, the curule dais more tufa stone, and the central space between the two banks of tiers tessellated in black and white marble so old it had long lost polish or majesty.
In view of the uncertainty on this point and the further fact that almost all the cavate lodges heretofore found were excavated in tufa, ash, or other soft volcanic deposits, the report of Mr.
Curia Hostilia had been uninspiring within: the tiers had been blocks of unrendered tufa, the walls drably painted with a few red curliques and lines on a beige background, the curule dais more tufa stone, and the central space between the two banks of tiers tessellated in black and white marble so old it had long lost polish or majesty.
Ten shafts lined with slabs of tufa which were there found may have been the approaches to tombs or may have served as wells.
The piano or plain of Sorrento terminates, on the side of the bay, in perpendicular cliffs of tufa, that vary from one to near two hundred feet in height.
And I see again that extraordinary crater, collapsed in the middle of the Via Cristoforo Colombo, with the plume of gray-black tufa dust still hanging in the air above it.
The result was a great crater, collapsed in the middle of the Via Cristoforo Colombo, with a plume of gray-black tufa dust hanging in the air above it.
Each night he stopped at a tiny inn or knocked on the door of a contadino family to buy his supper and space on a bed to rest, gripping the magnificent mountains between his legs, the irresilient tufa beneath his feet, filled with the delicious pulsating fatigue that beat up from his soles and ankles and calves and knees and thighs into his groin.
In a minute or so, he's puffing like a sumo wrestler and he hasn't got any tufa in the basket yet.