tufa

Etymology
From, from or. .

Noun

 * 1) Calcareous lime deposited by precipitation from a body of water, such as a hot spring.
 * 2) * 1993, George V. Benson, Meeting Highlights, George V. Benson (editor), Proceedings of the Workshop "Ongoing Paleoclimatic Studies in the Northern Great Basin", Geological Survey Circular, US Geological Survey, page 1
 * B.J. Szabo presented the results of a survey of the tufa mounds that border Pyramid Lake indicating that uranium-series methods can be used to approximate the ages of such tufa deposits. In the Pyramid Lake Basin, tufas less than 50,000 years old contain large quantities of excess thorium, and the error in age estimates made using uranium-series methods is not small enough to confirm results from 14C determinations.
 * 1)  A variety of volcanic rock, tuff.
 * 2) * 1825, "Oliver Oldschool" (Joseph Dennie), John Elihu Hall (editors), The Port Folio, page 426,
 * This again is followed by a bed of stony tufa of a reddish colour, containing fragments of a spongy lava, amphigone, pyroxene, mica, and common lava; and, like the former, traversed by argillaceous veins.
 * 1) * 1825, "Oliver Oldschool" (Joseph Dennie), John Elihu Hall (editors), The Port Folio, page 426,
 * This again is followed by a bed of stony tufa of a reddish colour, containing fragments of a spongy lava, amphigone, pyroxene, mica, and common lava; and, like the former, traversed by argillaceous veins.
 * This again is followed by a bed of stony tufa of a reddish colour, containing fragments of a spongy lava, amphigone, pyroxene, mica, and common lava; and, like the former, traversed by argillaceous veins.

Translations

 * Czech: pěnovec
 * Dutch: kalktuf
 * Finnish: lähdekalkki
 * French:
 * German: Kalktuff
 * Latin: tōfus
 * Russian:
 * Spanish:

Etymology
Related to Medieval Greek, but the ultimate source is unclear.

Noun

 * 1) a kind of helmet crest or plume
 * 2) a kind of military standard

Noun

 * 1) the sky
 * 2) ceiling

Verb

 * 1)  to strip (something)