corrasion noun3 •The wearing away of surface material.Following the healing process, hail injuries remain distinctive in the growth rings as corrasions or scars and can be dated with dendrochronological and wood-anatomical methods. — 2001 •Corrading (erosion by abrasion) caused by such as: wind-blown or water-borne sand, stream-borne or glacier-borne stones, or collisions between stones under the influence of seaside breakers.Corrasion may be vertical or lateral. Vertical corrasion is corrasion of the bed of the river, deepening its channel. Lateral corrasion is corrasion of the banks, and leaves the bed untouched. — 1993 •(no longer used) The diminution of wealth, etc., such as through unanticipated expenditure.These and other importunate corrasions, vvere not made onely to fill vp such breaches as the French affaires had produced, but also to spend in entertainments and shovves. — 1611 formscorrasions