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panelling

British  
/ ˈpænəlɪŋ /

noun

  1. panels collectively, as on a wall or ceiling

  2. material used for making panels

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012