| 释义 |
tufa
tu·fa T0404900 (to͞o′fə, tyo͞o′-)n. A soft, friable, and porous sedimentary rock consisting of calcium carbonate and formed by the evaporation of water, especially at the mouth of a hot spring or on a drying lakebed. It can also be precipitated by algae or bacteria.
[Obsolete Italian tufa, tufo, from Latin tōfus.]
tu·fa′ceous (-fā′shəs) adj.tufa (ˈtjuːfə) n (Minerals) a soft porous rock consisting of calcium carbonate deposited from springs rich in lime. Also called: calc-tufa [C18: from Italian tufo, from Late Latin tōfus] tufaceous adjtu•fa (ˈtu fə, ˈtyu-)
n. a porous limestone formed from calcium carbonate deposited by springs or the like. [1760–70; < Italian tufo tuff < Latin tōfus, tūfus] tu•fa′ceous (-ˈfeɪ ʃəs) adj. tu·fa (to͞o′fə) A rock formed of sediments deposited during the evaporation of lake water, spring water, or groundwater. Tufa is usually composed of calcium carbonate.Thesaurus| Noun | 1. |  tufa - a soft porous rock consisting of calcium carbonate deposited from springs rich in limecalc-tufarock, stone - material consisting of the aggregate of minerals like those making up the Earth's crust; "that mountain is solid rock"; "stone is abundant in New England and there are many quarries" | | 2. | tufa - hard volcanic rock composed of compacted volcanic ashtuffvolcanic rock - extrusive igneous rock solidified near or on the surface of the Earth |
Translationstufa
tufa: see travertinetravertine
, form of massive calcium carbonate, CaCO3, resulting from deposition by springs or rivers. It is often beautifully colored and banded as a result of the presence of iron compounds or other (e.g., organic) impurities.
..... Click the link for more information. .tufa[′tü·fə] (geology) A spongy, porous limestone formed by precipitation from evaporating spring and river waters, often onto leaves and stems of neighboring plants. Also known as calcareous sinter; calcareous tufa. tufaA porous limestone used in masonry construction.tufa a soft porous rock consisting of calcium carbonate deposited from springs rich in lime TUFA
| Acronym | Definition |
|---|
| TUFA➣Trent University Faculty Association (Peterborough, Ontario, Canada) | | TUFA➣Tarpley & Underwood Financial Advisors (est. 1997; Atlanta, GA) | | TUFA➣Total Unsaturated Fatty Acid | | TUFA➣Tokyo University of Fine Arts (Japan) |
tufa
Related to tufa: Melungeon, TYFASynonyms for tufanoun a soft porous rock consisting of calcium carbonate deposited from springs rich in limeSynonymsRelated Wordsnoun hard volcanic rock composed of compacted volcanic ashSynonymsRelated Words |