- A thin core of black powder surrounded by wrappings, which when lit at one end, will burn to the other at a fixed speed. A string-like core of PETN, a high explosive, contained within a waterproof reinforced sheath. "Primacord" is the best known brand.
- Browse Related Terms: A, Burden, Caldera (crater), Deflagration, Detonator, Fuse, Millisecond delay (short period delay), Spacing
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