prismatic powder
Military (now historical )
noun
Gunpowder compressed into hexagonal prisms with holes drilled along the length to ensure slow burning, formerly used in heavy artillery.
Origin
Mid 19th century; earliest use found in The Times.
- appal
- Appalachia
- Appalachian
- Appalachian Mountains
- Appalachian Trail
- appall
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- Appaloosa
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- apparent horizon
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- apparent magnitude
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- apparent wind