tufa

Also found in: Thesaurus, Acronyms, Encyclopedia, Wikipedia.

tu·fa

(to͞o′fə, tyo͞o′-)

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.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

tufa

(ˈtjuːfə)

(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 adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

tu•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.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Switch to new thesaurus

Noun	1.	tufa - a soft porous rock consisting of calcium carbonate deposited from springs rich in lime calc-tufa rock, 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 ash tuff volcanic rock - extrusive igneous rock solidified near or on the surface of the Earth

Translations

tuf

tufa

[ˈtjuːfə] N → toba f

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

Mentioned in ?

References in periodicals archive ?

I mean, problems in Somalia and in South Sudan are in some ways related to the hostile relations between the two countries," Geresu Tufa said.

Peace between Ethiopia and Eritrea will promote democracy

An evaluation of rbcL, tufA, UPA, LSU and ITS as DNA barcode markers for the marine green macroalgae.

Updates to the Marine Algal Flora of the Boulder Patch in the Beaufort Sea off Northern Alaska as Revealed by DNA Barcoding

Start at South Lake Tahoe, near the idyllic Emerald Bay State Park, and head south toward Mono Lake Tufa State Natural Reserve to see the bizarre, ghostlike towers.

Head for iconic road trips in California

Kenya's Jemima Sumgong overcame a heavy fall to beat defending women's champion Tigist Tufa.

Kenyan just misses out on record; ATHLETICS

The first official reference to a special PLA role in military crises or "sudden incidents" (tufa shijian) came in the 2002 Government Work Report presented to the National People's Congress in March of that year.

The evolution of interstate security crisis-management theory and practice in China

New York Road Runners also said Mary Keitany of Kenya will defend her title in a women's field that will include world championship silver medalist Helah Kiprop, Boston Marathon champ Caroline Rotich, London Marathon winner Tigist Tufa, 2013 NYC Marathon champ Priscah Jeptoo, and Buzunesh Deba, a two-time runner-up in New York who lives in the Bronx.

Ducks reload with talented newcomers

Addition of seeds oil to lactating dairy cows ration was one of the methods to change the proportion of total unsaturated FA (TUFA) in milk fat by about 40%, although extensive biohydrogenation occurs normally in the rumen (Dschaak et al., 2009).

Influence of sunflower whole seeds or oil on ruminal fermentation, milk production, composition, and fatty acid profile in lactating goats

Add a few rocks to set the scene (tufa is the best because it is as light as a feather but looks the part) and a good selection of plants to feel the mountain air filling your lungs.

ROCK STARS; Alpines are small but mighty, thriving when going gets tough. And it's easy to move the mountain to your own plot. ALPINES LOVE TO LIVE ON THE VERTICAL AND THE TOUGHER THE BETTER

Prince Harry, patron of the event, handed prizes to men's winner Kenyan Eliud Kipchoge, who crossed the finish line 2:04:42 and women's champion Ethiopia's Tigist Tufa, who finished in 2:23:22.

Legends; Marathon records tumble as London salutes its 37,800 brave race heroes

Africa athletes once again dominated the Virgin Money London Marathon with regular Tyneside visitor Eliud Kipchoge taking the honours in the men's contest and Tigist Tufa celebrating victory in the women's race.

Wallsend-born Sonia Samuels finishes in London Marathon Top 20; Sonia Samuels is first British runner home, while Gateshead Harrier Matty Hynes also has a day in the capital to remember

Ethiopia's Tigist Tufa ended Kenya's domination of the women's race with a shock victory.

Kipchoge magic in marathon; UPDATE

In the women's race, there was a shock win for Tigist Tufa as the Ethiopian ended fours years of Kenyan domination in London.