English-Thai Dictionary

pumice

N หิน ภูเขาไฟ  หิน ลาวา  lava hin-pu-kao-fai

 

Webster's 1828 Dictionary

PUMICE

n.[L. pumex, supposed to be from the root of spuma, foam. ] A substance frequently ejected from volcanoes, of various colors, gray, white, reddish brown or black; hard, rough and porous; specifically lighter than water, and resembling the slag produced in an iron furnace. It consists of parallel fibers, and is supposed to be asbestos decomposed by the action of fire.
Pumice is of three kinds, glassy, common, and porphyritic.

 

PUMICE-STONE

n.The same as pumice.

 

PUMICEOUS

a.Pertaining to pumice; consisting of pumice or resembling it.

 

Webster's 1913 Dictionary

PUMICE

Pum "ice, n. Etym: [L. pumex, pumicis, prob. akin to spuma foam: cf. AS. pumic-stan. Cf. Pounce a powder, Spume. ] (Min. )

 

Defn: 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.

 

PUMICED

PUMICED Pum "iced, a. (Far. )

 

Defn: 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.

 

PUMICEOUS

Pu *mi `ceous, a. Etym: [L. pumiceus.]

 

Defn: Of or pertaining to pumice; resembling pumice.

 

PUMICE STONE

PUMICE STONE Pum "ice stone `.

 

Defn: Same as Pumice.

 

New American Oxford Dictionary

pumice

pum ice |ˈpəməs ˈpəməs | ▶noun a very light and porous volcanic rock formed when a gas-rich froth of glassy lava solidifies rapidly. • (also pumice stone ) a piece of such rock or a similar substance used as an abrasive, esp. for removing hard skin. ▶verb [ with obj. ] rub with pumice to smooth or clean. DERIVATIVES pu mi ceous |pyo͞oˈmiSHəs, ˌpəmˈiSH - |adjective ORIGIN late Middle English: from Old French pomis, from a Latin dialect variant of pumex, pumic-. Compare with pounce 2 .

 

Oxford Dictionary

pumice

pumice |ˈpʌmɪs | ▶noun [ mass noun ] a very light and porous volcanic rock formed when a gas-rich froth of glassy lava solidifies rapidly. • (also pumice stone ) [ count noun ] a piece of pumice used as an abrasive, especially for removing hard skin. ▶verb [ with obj. ] rub with pumice to smooth or clean. DERIVATIVES pumiceous |pjuːˈmɪʃəs |adjective ORIGIN late Middle English: from Old French pomis, from a Latin dialect variant of pumex, pumic-. Compare with pounce 2 .

 

Sanseido Wisdom Dictionary

pumice

pum ice /pʌ́mɪs /名詞 U 軽石 (pumice stone ).動詞 他動詞 軽石で 〈ひじ かかと 〉を磨く, きれいにする .