cannelure

 : 
Noun
 : 
can=ne=lure

CIDE DICTIONARY

canneluren. [F., fr. canneler to groove.].
     A groove in any cylinder; specif., a groove around the cylinder of an elongated bullet for small arms to contain a lubricant, or around the rotating band of a gun projectile to lessen the resistance offered to the rifling. Also, a groove around the base of a cartridge, where the extractor takes hold.  [Webster 1913 Suppl.]

OXFORD DICTIONARY

cannelure, n. the groove round a bullet etc.

Etymology
F f. canneler f. canne reed, CANE

For further exploring for "cannelure" in Webster Dictionary Online


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