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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
About Pumice: Modern Uses and Applications of Pumice
Pumice is amazingly versatile, with uses found in various industries, including agriculture, horticulture, landscaping, filtration, concrete infrastructure, manufacturing, even cosmetics and other consumer goods These uses, and more, are detailed briefly below
Pumice Rock: Formation, Characteristics Uses - Sandatlas
Pumice is a porous volcanic glass that often floats on water Discover its formation during explosive eruptions and its uses in industry
Pumice: The Lightweight Rock of Fire and Air - Rockhounding Wiki
Pumice is an incredibly lightweight volcanic rock formed through the rapid cooling and depressurization of magma during explosive volcanic eruptions Its porous, frothy structure is due to the gas bubbles trapped inside the lava as it cools, creating a highly vesicular texture
PUMICE Definition Meaning - Merriam-Webster
The meaning of PUMICE is a volcanic glass full of cavities and very low in density that is used especially in powder form for smoothing and polishing

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