Definition of "roughening" [roughening]

• Present participle of roughen. (verb)

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• ""The integration of a replacement, porous SiCOH (pSiCOH), however, poses serious problems such as an unacceptable 'roughening' that occurs during plasma processing," explains Darnon."
• "“What happened, Pete?” she asked, concern roughening her voice."
• "I'll have to see if roughening the line with clay increases surface tension."