Source : Webster's Revised Unabridged Dictionary (1913)

Scrape \Scrape\ (skr[=a]p), v. t. [imp. & p. p. {Scraped}; p.
   pr. & vb. n. {Scraping}.] [Icel. skrapa; akin to Sw. skrapa,
   Dan. skrabe, D. schrapen, schrabben, G. schrappen, and prob.
   to E. sharp.]
   1. To rub over the surface of (something) with a sharp or
      rough instrument; to rub over with something that roughens
      by removing portions of the surface; to grate harshly
      over; to abrade; to make even, or bring to a required
      condition or form, by moving the sharp edge of an
      instrument breadthwise over the surface with pressure,
      cutting away excesses and superfluous parts; to make
      smooth or clean; as, to scrape a bone with a knife; to
      scrape a metal plate to an even surface.

   2. To remove by rubbing or scraping (in the sense above).

            I will also scrape her dust from her, and make her
            like the top of a rock.               --Ezek. xxvi.
                                                  4.

   3. To collect by, or as by, a process of scraping; to gather
      in small portions by laborious effort; hence, to acquire
      avariciously and save penuriously; -- often followed by
      together or up; as, to scrape money together.

            The prelatical party complained that, to swell a
            number the nonconformists did not choose, but
            scrape, subscribers.                  --Fuller.

   4. To express disapprobation of, as a play, or to silence, as
      a speaker, by drawing the feet back and forth upon the
      floor; -- usually with down. --Macaulay.

   {To scrape acquaintance}, to seek acquaintance otherwise than
      by an introduction. --Farquhar.

            He tried to scrape acquaintance with her, but failed
            ignominiously.                        --G. W. Cable.

Scraping \Scrap"ing\, n.
   1. The act of scraping; the act or process of making even, or
      reducing to the proper form, by means of a scraper.

   2. Something scraped off; that which is separated from a
      substance, or is collected by scraping; as, the scraping
      of the street.

Scraping \Scrap"ing\, a.
   Resembling the act of, or the effect produced by, one who, or
   that which, scrapes; as, a scraping noise; a scraping miser.
   -- {Scrap"ing*ly}, adv.

Source : WordNet®

scraping
     n 1: (usually plural) a fragment scraped off of something and
          collected; "they collected blood scrapings for analysis"
     2: a harsh noise made by scraping; "the scrape of violin bows
        distracted her" [syn: {scrape}, {scratch}, {scratching}]
     3: a deep bow with the foot drawn backwards (indicating
        excessive humility); "all that bowing and scraping did not
        impress him" [syn: {scrape}]