rock-fire
now historical
noun
A hard incendiary substance that burns slowly and is difficult to extinguish, consisting chiefly of a mixture of resin, sulphur, and potassium nitrate.
Origin
Mid 19th century.
| 单词 | rock-fire |
| 释义 | rock-firenow historical noun A hard incendiary substance that burns slowly and is difficult to extinguish, consisting chiefly of a mixture of resin, sulphur, and potassium nitrate. Origin |
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