Definition of "nicking"

nicking

verb
1. present participle and gerund of nick
noun
plural nickings
1. A small cut or nick.
  Quotations
  The physicians sounded a warning about shaving among both men and women who have pigmented moles on the skin. Such moles, they cautioned, should never be irritated by repeated nickings.
  1961, Life, volume 50, number 20, page 15
2. (mining) The cutting made by the hewer at the side of the face.