contusion vs. abrasion

noun

  1. an injury, as from a blow with a blunt instrument, in which the subsurface tissue is injured but the skin is not broken; bruise.

noun

  1. a scraped spot or area; the result of rubbing or abrading.

    abrasions on his leg caused by falling on the gravel.

    Synonyms: lesion, scrape, sore
  2. the act or process of abrading.

    Synonyms: erosion, rubbing