sillon[Français]

verbe
1 : hollow out in the form of a furrow or groove
2 : make wrinkled or creased
nom
1 : a groove on a phonograph recording
2 : the cutting of spiral grooves on the inside of the barrel of a firearm
3 : a groove or furrow in cloth etc (particularly a shallow concave groove on the shaft of a column)
4 : a slight depression in the smoothness of a surface
Definitions