Definition of cannelure
1 : a groove running lengthwise on the surface of a cylinder or column
2a : a groove around the cylinder of an elongated bullet for small arms to contain a lubricant b : a groove around a bullet into which the edge of the cartridge case is crimped c : a groove around the rotating band of a gun projectile to lessen the resistance offered to the rifling d : a groove around the base of a cartridge where the extractor takes hold
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Origin and Etymology of cannelure
French cannelure, alteration of Middle French cannelature, from Old Italian cannellatura, probably from cannella small tube, cinnamon, from Medieval Latin canella — more at canella
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