puncture and scar (the skin), as for purposes or tribal identification or rituals; "The men in some African tribes scarify their faces" break up; "scarify soil" scratch the surface of; "scarify seeds
{f} cause a scar; make small cuts or scratches in the skin; crush, break up the surface layer of something (e.g. ground before planting); criticize sharply
To abrade, scratch, or modify the surface For example, to scratch the impervious seed coat of hard seed or to break the surface of the soil with a narrow-bladed implement
Scarification: Any physical abrasion applied to a hard seed coat to permit better water and gas entry into the seed Removal of moss and old grass from a lawn by raking