A scar produced by searing

Part of a gun that retards the hammer until the trigger is pulled.

(transitive) To char, scorch, or burn the surface of (something) with a hot instrument.

To wither; to dry up.

(transitive, figurative) To make callous or insensible.

(transitive, figurative) To mark permanently, as if by burning.

Dry; withered, especially of vegetation.