n.
Function: noun
Etymology: perhaps from Dutch or Low German bles; akin to Old Norse blesi white stripe on an animal and probably to Old English blæse torch
Date: 1639
1 a : a usually white stripe down the center of the face of an animal b : a white or gray streak in the hair of the head
2 : a trail marker especially : a mark made on a tree by chipping off a piece of the bark