scoria /sköˈri-ə or skōˈ/

1. Dross or slag from metal-smelting
2. A mass of lava with steam-holes

scoˈriac or scoriaceous /-ri-āˈshəs/ adjective

scorificāˈtion noun

1. Reduction to scoria
2. Assaying by fusing with lead and borax

scoˈrifīer noun

A dish used in assaying

scoˈrify transitive verb

1. To reduce to scoria
2. To rid metals of (impurities) by forming scoria

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• squeaking
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