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pumice 音标拼音: [p'ʌməs]

n. 轻石,浮石
vt. 用浮石磨光

轻石,浮石用浮石磨光

WordNet (r) 3.0 (2006) (WordNet)

pumice
n 1: a light glass formed on the surface of some lavas; used as
an abrasive [synonym: {pumice}, {pumice stone}]
v 1: rub with pumice, in order to clean or to smoothen

The Collaborative International Dictionary of English v.0.48 (gcide)

Pumice \Pum"ice\, n. [L. pumex, pumicis, prob. akin to spuma
foam: cf. AS. pumic-st[=a]n. Cf. {Pounce} a powder, {Spume}.]
(Min.)
A very light porous volcanic scoria, usually of a gray color,
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, esp. in the form of powder, for smoothing
and polishing. Called also {pumice stone}.
[1913 Webster]

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英文字典中文字典相关资料:

Pumice - Wikipedia
Pumice ( ˈpʌmɪs ), called pumicite in its powdered or dust form, is a volcanic rock that consists of extremely vesicular rough-textured volcanic glass, which may or may not contain crystals It is typically light-colored
Pumice | Volcanic Glass, Uses, Formation, Properties | Britannica
pumice, a very porous, frothlike volcanic glass that has long been used as an abrasive in cleaning, polishing, and scouring compounds It is also employed as a lightweight aggregate in precast masonry units, poured concrete, insulation and acoustic tile, and plaster
Pumice: Formation, Properties, Uses, and Why It’s So Lightweight
Pumice is a lightweight volcanic rock formed by gas-rich eruptions Explore its formation, physical and chemical properties, and real-world uses
Pumice: Igneous Rock - Pictures, Definition More
Pumice is a light-colored, extremely porous igneous rock that forms during explosive volcanic eruptions It is used as aggregate in lightweight concrete, as landscaping aggregate, and as an abrasive in a variety of industrial and consumer products
Pumice: A Frothy, Light-Colored Volcanic Rock with Many Uses
Pumice is a very low-density, form-like, mostly light-colored glassy volcanic rock with a vesicular texture, not a mineral This rough, porous rock forms from mostly silicic, high-viscosity, volatile-rich lava during an explosive volcanic eruption
What Is Pumice Used For? - Sciencing
Since pumice stone is made of solidified magma with large pores from trapped gases, it is a very lightweight material that is useful in a variety of construction and landscaping applications
Ultimate Guide to Pumice (The Floating Rock!) - Rock Seeker
Pumice is one of the stranger stones out there Less dense than water, with a wide variety of both industrial and personal uses, it’s actually the result of violent volcanic eruptions

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