Definition of "scoriaceous" []

• Of, relating to, or producing scoria (adjective)

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• "From this part descends a black scoriaceous tract; very rugged, and covered with a scanty vegetation of scattered bushes as far down as the sea."
• "Where the lime has been caught up by the scoriaceous fragments of the lower surface of the stream, it is converted into groups of beautifully radiated fibres resembling arragonite."
• "To the South-west the plain is bounded by ridges of scoriaceous basalt, and by a buttress of rock called Jabal Ayr, like Ohod, about three miles distant from the town."