| 释义 | scoria noun[ C or U ]
 geology specializeduk /ˈskɔː.ri.ə/ us /ˈskɔːr.i.ə/pluralscoriae
 a dark-coloured rock containing a lot of small holes, formed by lava (= hot liquid rock) from a volcano : 火山渣
 The sides of the hill were thickly covered with scoria.山坡上覆盖着厚厚的火山渣。
 The scoriae fragments are of all sizes from huge blocks down to minute granular dust.火山残渣的碎片大小不一,从巨大的石块到细小的颗粒状灰尘都有。
 Made from volcanic scoria and aluminium and weighing 40 tons, the sculpture is an awesome sight.
 After crossing the crater ice and a short scoria slope, it arrives at the summit rocks.
 Ash, scoria and pumice produced during volcanic eruptions is called tephra.
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