pumice

Etymology
From and, from. .

Noun

 * 1) A light, porous type of pyroclastic igneous rock, formed during explosive volcanic eruptions when liquid lava is ejected into water or air as a froth containing masses of gas bubbles, which are frozen into the rock as the lava solidifies.

Translations

 * Arabic: خَفَاف
 * Armenian:
 * Basque: pumita
 * Belarusian: пе́мза
 * Bengali: ঝামা পাথর
 * Breton:
 * Bulgarian: пе́мза
 * Catalan: pumicita
 * Chinese:
 * Mandarin: ,
 * Czech:
 * Danish:
 * Dutch:
 * Esperanto: pumiko
 * Estonian: pimss
 * Finnish:
 * French: ,
 * Old French: pomis, ponce
 * Friulian: pomighe
 * Galician:
 * Georgian: პემზა
 * German:
 * Greek:
 * Ancient: κίσηρις
 * Hebrew: פומיס
 * Hindi:
 * Hungarian:, ,
 * Icelandic:
 * Ido:
 * Indonesian:
 * Irish: slíogart
 * Italian:
 * Japanese:
 * Kazakh: пемза
 * Korean: 경석
 * Kyrgyz: пемза
 * Latin: pūmex
 * Latvian:
 * Lithuanian: pemza
 * Maori: pungapunga, tāhoata
 * Norman: pièrre dé ponce
 * Northern Sami: dikŋa
 * Norwegian: pimpstein
 * Occitan: pomce
 * Odia:
 * Persian:
 * Polish:
 * Portuguese: ,
 * Punjabi:
 * Romanian:
 * Russian:
 * Serbo-Croatian:
 * Cyrillic: пловућац
 * Roman: plovučac
 * Sicilian: petra pùmici
 * Slovak:
 * Spanish: ,
 * Swedish:
 * Tagalog: batong-buga, buga
 * Thai:
 * Turkish:
 * Ukrainian: пе́мза
 * Urdu:
 * Uzbek:
 * Vietnamese: đá bọt
 * Welsh: pwmis
 * Yiddish: פּימס

Verb

 * 1)  To abrade or roughen with pumice.