| pumice | <chemical> A very light porous volcanic scoria, usually of a gray colour, the pores of which are capillary and parallel, giving it a fibrous structure. It is supposed to be produced by the disengagement of watery vapor without liquid or plastic lava. It is much used, especially. In the form of powder, for smoothing and polishing. Synonym: pumice stone. Origin: L. Pumex, pumicis, prob. Akin to spuma foam: cf. AS. Pumic-stan. Cf. Pounce a powder, Spume. Source: Websters Dictionary (01 Mar 1998) |
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| pumiced | <veterinary> Affected with a kind of chronic laminitis in which there is a growth of soft spongy horn between the coffin bone and the hoof wall. The disease is called pumiced foot, or pumice foot. Source: Websters Dictionary (01 Mar 1998) |
| pumiced foot | A condition of the horse's hoof, frequently associated with chronic laminitis, in which the sole is level with or extends beyond the bearing surface of the hoof wall, causing lameness, particularly when the animal moves on hard surfaces; the sole becomes thick and flaky. (05 Mar 2000) |
| pumice |
a light glass formed on the surface of some lavas; used as an abrasive rub with pumice, in order to clean or to smoothen
Ãâó: wordnet.princeton.edu/perl/webwn
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| pumice |
A frothy volcanic glass. (See page(s) 86)
Ãâó: highered.mcgraw-hill.com/sites/0072402466/student_...
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| pumice |
An excessively cellular, glassy lava. It has the same basic composition of rhyolite. It is best described as "volcanic froth".
Ãâó: www.nps.gov/crla/pumice.htm
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| pumice |
A light-colored, frothy volcanic rock, usually of dacite or rhyolite composition, formed by the expansion of gas in erupting lava. Commonly perceived as lumps or fragments of pea size and larger but can also occur abundantly as ash-size particles. Because of its numerous gas bubbles, pumice commonly floats on water.
Ãâó: www.msnucleus.org/membership/html/jh/earth/diction...
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| pumice |
the part with the highest elevation, esp. of a mountain; peak.
Ãâó: www.teach-nology.com/worksheets/science/volcano/qu...
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| pumice | a light glass formed on the surface of some lavas |
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| pumice | a light glass formed on the surface of some lavas |
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