| slovo | definícia |
pumice stone
(encz) | pumice stone,pemza [geol.] Zdeněk Brož |
pumice stone
(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] |
Pumice stone
(gcide) | Pumice stone \Pum"ice stone`\
Same as Pumice.
[1913 Webster] |
pumice stone
(wn) | pumice stone
n 1: a light glass formed on the surface of some lavas; used as
an abrasive [syn: pumice, pumice stone] |
| | podobné slovo | definícia |
Pumice stone
(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]Pumice stone \Pum"ice stone`\
Same as Pumice.
[1913 Webster] |
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