A French-English Military Dictionary - Sturmpanzer.com

guide 212 hache
guide, m., guide, leader, conductor; (mil.') guide
(at drill), guide (of a march); (in pi.} special
corps of light infantry or cavalry in some
armies; (cord.) guy; (macJi.) guide, guide rod,
slide bar, radius bar, crosshead guides; (art.)
taking of the grooves;
d ailettes, (art.) taking the grooves by studs;