[ UK /ɹˈʌfən/ ]
  1. make rough or rougher
    roughen the surfaces so they will stick to each other
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How To Use roughen In A Sentence

  • The idea here is to use an adsorbent surface (a roughened metal plate) to concentrate explosive vapours.
  • Some mechanics buy narrow wire brushes to even and roughen the glue surface. Ask Nick: Tire choice for an epic, re-gluing tubulars, post-crash replacements and more
  • Remove shelves and sand them with medium and then fine abrasive paper to smooth surfaces roughened by water.
  • Within time high winds rose roughening the waves to a height of up ten feet and more.
  • In a mezzotint, a serrated tool is used to roughen areas that will retain ink to be printed, while areas to remain white are burnished and scraped smooth so that ink can be wiped away.
  • Again its a case of getting these young guys to look a bit scarier and to shorten and roughen up their songs.
  • First you take an abrasive pad and roughen the material to provide a better gluing surface.
  • reeding," or roughened edge, is stamped sharply, and we can tell just what the coin is by feeling of it with the finger, even in the dark. St. Nicholas Magazine for Boys and Girls, Vol. 5, May, 1878, No. 7. Scribner's Illustrated
  • Etching the parts roughens the surface for better mechanical adhesion of the EN to the magnesium.
  • The integration of a replacement, porous SiCOH (pSiCOH), however, poses serious problems such as an unacceptable 'roughening' that occurs during plasma processing," explains Darnon. Science Blog
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