Abrasion is where flowing water picks up rocks and moves them along in it's current. It can cause damage to the side of rivers (Lateral Erosion) as well as the riverbed (Vertical Erosion).
Abrasion can also be defined a lot simpler by just saying "When waves throw rocks up at cliffs" etc. This is not to be confused with Attrition though.
A graze.
Abrasion
INCISION
Since the typical abrasion affects only the skin, the term "wound" is likely to be considered an exaggeration. Wounds generally are deeper injuries than abrasions.
A wound that scrapes off the epidermis (or part of the epidermis) is called an abrasion.
Incision is a cut or penetration made by a sharp edge. Abrasion is a scrape or friction wound.
Burns can expose the most nerve endings. Pain from burns is pretty substantial.
The medical term commonly called a scratch is "abrasion." It refers to a superficial wound on the skin caused by rubbing or scraping against a rough surface.
Abrasion is when particles carried by water or wind weather away rocks. Additional: An abrasion is also a wound caused when skin is scraped away by contact with another object. A laceration would be a cut, an avulsion is when a body part is severed completely, a contusion is a bruise, etc.
*abrasion*
(a-bray-zhon) - A minor wound in which the surface of the skin or a mucous membrane is worn away by rubbing or scraping.
injury, wound, abrasion, bruise, contusion, cut, gash, laceration, scrape, scratch, sore
The word "wound" has more than one definition, and can be pronounced differently. So, wound, meaning a cut or abrasion on your body, rhymes with mooned or swooned. But wound, meaning wrapped around, rhymes with found, bound, hound, mound, etc.