cannelure

[kan-l-oo r]

noun

a groove or fluting around the cylindrical part of a bullet.
any groove or fluting on a cylinderlike object.

Related formscan·ne·lured, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for cannelured

cannelure

noun

a groove or fluting, esp one around the cylindrical part of a bullet

Word Origin for cannelure

C18: from French, ultimately from Latin canālis canal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012